Delve into the world of built-in app and system services available to developers. Discuss leveraging these services to enhance your app's functionality and user experience.

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How to reset system window private picker alert with Screen Capture Kit
Hi, I would like to reset system window private picker alert with ScreenCapture kit. i can reset the ScreenCapture permission with tccutil reset ScreenCapture. but it does not reset the system window private picker alert. i tried deleting the application directory from container and it does not help. the system window private picker alert uses the old approval i gave and it does not prompt a new alert. How can i starta with fresh screencapture kit settings for an app in testing? Thanks
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140
Jun ’25
Universal Links not working with subdomains without AASA on root domain
Hi all, I'm trying to set up universal links for my app but it's not working. What I want: cogover.com → Safari (website) - NOT my app *.cogover.com (any subdomain like abc.cogover.com) → My app What I did: Added applinks:*.cogover.com in Xcode Put AASA files on all subdomains They work fine (checked with curl) Problem: All links still open in Safari, not my app. I do not put AASA on my root domain cogover.com because I don't want open my app with root domain. I have checked TN3155: Debugging universal links | Apple Developer Documentation but it only say about universal link works with both root domain and subdomains. Weird thing I found: I checked how Salesforce does it - their *.force.com subdomains work perfectly. But when I tried to check their setup, (https://force.com/.well-known/apple-app-site-association) doesn't seem to exist either! So how does theirs work? Even stranger - Apple's CDN has their file cached at (https://app-site-association.cdn-apple.com/a/v1/force.com) but the actual domain doesn't serve it. Can Apple's CDN have a file cached even if it's not on the website anymore? Thanks for any help!
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160
Jul ’25
FinanceKit - Any way to get merchant location info from transactions?
Hi all — I’m building a Wallet-style transaction details view using FinanceKit and I’m running into a gap around merchant location. What I’m seeing FinanceKit gives me great core fields (amount, currency, status, dates, MCC, merchantName, transactionDescription), but I’m not seeing any address or place/location metadata on a Transaction. For example, a small/local merchant where I can plausibly infer a single place: Fetched transaction: Transaction( id: 8D142B16-3E0E-40B8-945A-2E7C0CF65F1D, accountID: 14939CF4-DBC3-4A9D-8292-5FEA495B8461, transactionAmount: 47.24 USD, creditDebitIndicator: .debit, transactionDescription: "Local Dental Care", originalTransactionDescription: "Local Dental Care", merchantCategoryCode: 8021, merchantName: "Local Dental Care", transactionType: .pointOfSale, status: .booked, transactionDate: 2025-08-20 22:27:50 +0000, postedDate: 2025-08-21 11:22:06 +0000 ) Because this appears to be a single-location practice, I can usually resolve it to a place using MapKit search heuristics. But for big-box chains, I don’t get enough signal to determine which store: Fetched transaction: Transaction( id: 3F8E9F74-7565-4D24-9038-8FD709184799, accountID: 14939CF4-DBC3-4A9D-8292-5FEA495B8461, transactionAmount: 441.77 USD, creditDebitIndicator: .debit, transactionDescription: "The Home Depot", originalTransactionDescription: "The Home Depot", merchantCategoryCode: 5200, merchantName: "The Home Depot", transactionType: .pointOfSale, status: .booked, transactionDate: 2023-12-27 23:07:02 +0000, postedDate: 2023-12-29 03:09:41 +0000 ) There’s no store number, address, phone, or any stable identifier. With hundreds of locations, I can’t deterministically choose a map pin or fetch the right brand assets. What I’m trying to achieve I’d like to replicate the Apple Wallet experience: show a small map snapshot and merchant visuals (logo/name that match Apple Maps / the Place Card) on the transaction detail screen. Without a location hint, I have to either: Ask users to pick a store manually, or Make a guess based on a coarse, app-defined region …neither of which feels great. Questions Is there any way in FinanceKit today to access merchant location or a resolvable identifier (e.g., address, city/state, store number, Apple Maps place identifier, network merchant ID/MID, terminal ID, etc.)? If not, can FinanceKit expose additional merchant metadata (even opt-in / privacy-preserving) to enable Wallet-like enrichment? A few examples that would unblock this: merchantAddress (or components: street/city/region/postalCode/country) merchantPhone (often unique per store) merchantIdentifier (stable per physical location, e.g., network merchant ID / store number) mapsPlaceURL or mapsPlaceIdentifier (linkage to the Apple Maps Place Card) brandAssetURL (logo/brand reference similar to what Wallet shows) With even one of the above, I could reliably: Render an accurate map snapshot, Fetch the correct brand assets, and Avoid prompting the user or inferring via fuzzy search. Context / constraints I do not want to (and shouldn’t need to) request or monitor the user’s device location to resolve a merchant’s store location. For small merchants, MapKit text search is often enough. For large chains, I need a store-level identifier. If there’s an existing field or recommended approach I’m missing, I’d love pointers. If not, please consider this a feature request for richer merchant metadata in FinanceKit so developers can build Wallet-quality transaction details. Thanks!
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Aug ’25
How do I launch the Outlook Mail app from my development app?
I want to start the mail application from the development application, but the mail application made by Apple starts. It doesn't work even if I change the default email application to Outlook. When you delete the Apple Mail app, Outlook starts. I want to automatically attach the generated pdf file to the email, but that doesn't work either. Please tell me how to code.
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107
Sep ’25
A Summary of the WWDC25 Group Lab - watchOS (Part 1)
At WWDC25 we launched a new type of Lab event for the developer community - Group Labs. A Group Lab is a panel Q&A designed for a large audience of developers. Group Labs are a unique opportunity for the community to submit questions directly to a panel of Apple engineers and designers. Here are the highlights from the WWDC25 Group Lab for watchOS (part 1). 1. I'm really excited about the new design system on all platforms. Liquid Glass is super cool. What do developers need to keep in mind when building for watchOS 26? To adopt the new design system, start with updating your app for watchOS 10 – If you have done so, your app will be mostly ready for watchOS 26. For more information, see Design and build apps for WatchOS 10. You can then look into Liquid Glass specific APIs to fine tune your app. This topic is covered in Adopting Liquid Glass. If you have SwiftUI views using any custom style, make sure they are still legible and fit with the new design system. 2. Something that really stood out to me were updates to the Smart Stack, with the system prioritizing Widgets when they're most relevant. Tell me more about these new opportunities for apps. Workout apps that record workouts using HealthKit may be automatically suggested on the watch face and appear in the Smart Stack without adding a widget. Relevant widgets are a great way to present information related to a date, location, point-of-interest type, sleep schedule, or fitness condition in the Smart Stack when it is relevant. Relevant widgets don't need to display a empty state view when they are not relevant. They are only shown in the Smart Stack when relevant. The watchOS 26 Design ToolKit in the Apple Design Resources includes a set of templates that you can use to layout your widgets. 3. Is the Wrist Flick gesture available to developers in the same way as Double Tap is? The system uses Wrist Flick to dismiss notifications and incoming calls, silence timers and alarms, or return to the watch face. There is no separate API for the Wrist Flick gesture. Apps that are using XCUIAutomation to make sure their user interface behaves as intended can use the XCUIDeviceHandGesture.flick to automate tests that verify that their app responds appropriately to the Wrist Flick gesture. For apps using automated testing, the XCUIDeviceHandGesture.doubleTap can be also be used to automate testing of the app with the Double Tap gesture. See XCUIDevice.perform(handGesture:) 4. Can HRV measurements be triggered on demand via API in watchOS? Guidelines or processes for enabling energy-intensive biometric sampling on development devices for IRB-approved research? You don’t have direct control on the sampling rate in watchOS. You can use HealthKit (HKQuantityTypeIdentifierHeartRateVariabilitySDNN, to be specific) to query the HRV data, once the system has sampled and persisted the data to HealthKit. If that doesn’t help, we suggest that you file a feedback report with your concrete use case for us to investigate. Specific to IRB-approved research using Apple Watch or its companion iPhone, you might want to look at this FAQ and SensorKit to see if they can be of any help. 5. What is the best advice for someone who is new to making a watchOS app that’s been on iOS and iPadOS? You can start with exploring the system experience features on watchOS, such as notifications, controls, and widgets, and getting familiar with the system spaces, like Smart Stack, watch face, and control center. Knowing the watchOS app design principles and practices is important as well. Design and build apps for WatchOS 10 is a great resource for this topic. SwiftUI is an amazing across-platform framework, and you will use it to create your watchOS app. If you're already using it, great! Keep in mind some watch-only constraints. Comparing to iPhone or iPad, Apple Watch has a limited battery and smaller screen size, which significantly impacts how people use your app and how your app works. 6. Was there any extension this year to the 7 day limit on querying Apple Health data on the watch? There is no change on the limit this year. You can get this official limit at runtime using earliestPermittedSampleDate. There are some exceptions, and so don't be surprised if you see some data types are retained longer. The companion iPhone holds the full set of the health data. If you need to access the health data that has been purged from the Apple Watch, consider doing it with your iOS app, and then passing the result to your watchOS app.
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183
Jul ’25
[iOS 26] [PushToTalk] Not receiving microphone PCM sample when Transmission Starts from System UI.
Steps To reproduce: Login to application and App has joined the PTC channel. Push the application to background and Lock the device. From the System UI press the talk button which will start transmit. Audio Session has been activated and Audio unit has been initialised properly. On terminator side no media is being played out. Issue observed consistently on specific models which has configured audio codec with Stereo type. More details are added : FB20281626
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370
Oct ’25
WebDomain.token always returns nil - What am I doing wrong?
I'm new to the Screen Time API and trying to block custom websites, but I can't get WebDomain tokens to work. When I create a WebDomain like WebDomain(domain: "reddit.com"), the token property is always nil. I have proper authorization and the app works fine for blocking apps, but website blocking just won't work. I'm confused because I see apps like JOMO that let users type in any website domain and successfully block it using Screen Time API. They have the same 49 domain limit and only ask for Screen Time permission, so they must be using the same API I am. But somehow their WebDomain tokens work and mine don't. I've tried creating the tokens right after getting authorization and during the FamilyActivityPicker session, but still get nil. Am I missing some setup step or API call that makes WebDomain tokens valid? Any help would be really appreciated since I'm stuck on this.
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Aug ’25
先调用isEligibleForAgeFeatures,返回YES后,调用requestEligibility,不会弹出是否分享年龄框的提示
[MTAgeRangeService requestEligibility:^(BOOL eligible) { if (eligible) { //您应用程序的用户所在的地区,需要执行特定年龄相关义务 [MTAgeRangeService requestAgeRangeWithAgeGates:18 in:[ViewU getCurrentVC] completion:^(enum ARResponseType responseType, ARAgeRange * _Nullable ageRange, NSError * _Nullable error) { [weakself.ageRangeLoadingView dissmiss]; self->_ageRangeLoadingView = nil; if (responseType == ARResponseTypeSharing) { //用户同意并分享了年龄范围 if ([ageRange.lowerBound intValue] >= 18) { //满18岁可以注册 }else{ //不到18岁不能注册,提示一下 } }else{ //用户拒绝或者其他未知错误,需要提示 }else{ } } }] ; }else{ }];
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Dec ’25
Action Extensions: How do Amazon & Google open their apps?
Both follow the same pattern: show the image that is being shared along with a CTA button about doing something with it in their app. When you tap the button, their app opens. Is there some kind of magic conditions that tapping the button creates that makes extensionContext.open(_ URL: URL, completionHandler: ((Bool) -> Void)?) accept a URL for opening the app? Or are they just using the "walk the responder chain" hack and using the user's intent to do something in their app as sufficient justification for using it? I've tried opening a registered URL scheme for my app synchronously with the button tap, but it still is refusing to open (callback returns false).
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Nov ’25
FinanceKit: Apple Savings transactions missing source account information
When fetching Apple Savings transactions via FinanceKit, the data is missing key context about where the deposit originated from. Here’s an example transaction I retrieved: Transaction( id: 77371A0C-7122-42C7-BEBC-85BDF654AD2B, accountID: 68D9FE9D-6DA6-4A27-BB9D-19209CD29A56, transactionAmount: 1.46 USD, creditDebitIndicator: .credit, transactionDescription: "Deposit", originalTransactionDescription: "", merchantCategoryCode: nil, merchantName: nil, transactionType: .deposit, status: .booked, transactionDate: 2025-08-20 13:44:26 +0000, postedDate: 2025-08-20 13:44:26 +0000 ) As shown: transactionDescription is just "Deposit" merchantName is nil No indication of the source account In contrast, the Wallet app clearly shows context for Apple Savings account deposits, such as: "Apple Card" (daily cash) "Bank of America" (external transfer) "Interest Paid" (we do see "Interest" come through correctly) Without this metadata, third-party apps cannot replicate Wallet’s clarity about where a deposit came from. Every deposit simply appears as "Deposit", which is ambiguous. Request: Please expose additional metadata for Apple Savings account transactions, for example: sourceAccountName (e.g. “Apple Card” or “Bank of America”) transactionOriginType (cashback, external bank transfer, interest) institutionIdentifier or similar for external banks This would allow developers to show clear, Wallet-quality transaction details and avoid confusing users. Impact: The lack of source info makes Savings deposits nearly indistinguishable from one another, even though Wallet provides this context. For apps leveraging FinanceKit, this results in a poorer experience compared to Apple’s own Wallet. Thanks!
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Aug ’25
On-Demand Resources with Initial Install Tags Are Frequently Unavailable at First Launch
Hello, Because our app package size is relatively large, part of our resources needs to be delivered through Apple-hosted asset packs. If we use the Background Assets framework to download these Apple-hosted packs, our app would only be able to support devices running iOS 26 or later. To maintain compatibility with a broader range of iOS versions, we chose to use iOS On-Demand Resources instead. However, during actual use, we found that even when these packs are marked with the initial install tag, there is still a fairly high probability (around 40%) that they are not available on the first screen after the app is launched for the first time. When we try to access them through conditionallyBeginAccessingResourcesWithCompletionHandler, the resources are unavailable, which forces us to download them again. During testing, we added event tracking and found that out of 22 users who downloaded the app, 9 had to re-download these resource packs on first launch. Each of these packs marked with the initial install tag is about 300 MB in size. We have also made sure to follow the NSBundleResourceRequest limitation that no more than 2000 × 1000 × 1000 bytes of resources should be accessed at the same time. We would like to understand why these packs, even though they are marked as initial install, still have such a high probability (around 40%) of being unavailable on the first screen at first launch.
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Question about Shield customization limits in ManagedSettingsUI (videos, text length, personalization)
Hi everyone, I’m currently developing a parental control app that uses the Screen Time API (FamilyControls, ManagedSettings, DeviceActivity). I have a question regarding the customization limits of the Shield UI in ManagedSettingsUI. From the documentation, I understand that we can customize the ShieldConfiguration (background color, blur style, icon, title, subtitle, button labels, etc.). However, I’d like to clarify a few points before finalizing the design: 1. Is it allowed (or technically possible) to display custom media content, such as videos, animations, or interactive elements, inside a custom Shield? 2. Are there limitations on the text length for the title and subtitle fields (e.g. maximum number of characters, multiline support, truncation behavior)? 3. Can the Shield be personalized per user (for example, showing a different title or color scheme based on user preferences or device state)? 4. Are there App Store Review restrictions or UI guidelines that define what a Shield should or should not contain (for instance, whether the Shield can resemble a mini-app experience)? I want to ensure that the implementation fully complies with Apple’s technical and design expectations before submission. Thanks in advance for any official clarification or best practices on how far we can go with Shield customization! Best regards, Ferdinand
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Oct ’25
User-initiated sharing of Screen Time metrics (FamilyControls / DeviceActivity)
Hi, We’re building an iOS app that uses the Screen Time APIs (FamilyControls and DeviceActivity) to display a user’s own usage metrics inside the app. With the appropriate permissions granted, we are successfully reading and presenting metrics such as: Total screen time Device pickups These metrics are already visible to the user inside our app. We would now like to introduce a user-initiated “Share” feature. The idea is to: Render selected Screen Time metrics into a shareable image card generated locally on device. Present the standard iOS share sheet (UIActivityViewController). Allow the user to share that image to Messages, social apps, etc., if they choose. Important clarifications: This is fully user-initiated. The app does not automatically transmit Screen Time data. The metrics are already displayed in-app with user permission. The share asset would be generated locally. No background export or server-side posting would occur unless explicitly triggered by the user via the share sheet. We are seeking clarification on whether there are any policy or API restrictions around: Rendering Screen Time-derived metrics into a user-facing share card Allowing user-initiated export of those metrics via the standard iOS share flow Are there any additional privacy requirements, entitlement constraints, or App Review considerations we should be aware of when implementing this? Thanks in advance for any guidance.
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Feb ’26
Live Lookup flow stuck at /issue/token-key-for-user-token endpoint
Hi Apple engineering team, I’m trying to integrate the new Live Caller ID Lookup (PIR) on iOS using your pir-service-example code as well as a custom mock server in Vapor, but the extension never advances past the /issue/token-key-for-user-token step. I’ve tried both: 1. Official Example Cloned https://github.com/apple/pir-service-example Ran PIRService locally Confirmed that GET /.well-known/private-token-issuer-directory → 200 GET /issue/token-key-for-user-token → 200 (DER bytes, correct SPKI) No POST /issue ever fires 2. Mock Server (Vapor) Implemented all five endpoints (/config, /.well-known/private-token-issuer-directory, /issue/token-key-for-user-token, /issue, /queries) Verified with curl and openssl asn1parse that: GET /.well-known/private-token-issuer-directory Content-Type: application/private-token-issuer-directory { "issuer-request-uri":"https://…/issue", "token-keys":[…] } GET /issue/token-key-for-user-token Content-Type: application/octet-stream <DER bytes> Added Cache-Control: public, max-age=3600 on directory and SPKI Stubbed POST /issue to always return { "token": "" } Still no POST /issue request from the extension Reproduction Steps Install and enable a Live Lookup extension pointing to my server. Trigger an incoming call on device. Watch server logs—only see the two GETs, never /issue or /queries. Expected Behavior After fetching the SPKI DER, the framework should issue a POST /issue call (Privacy Pass flow) and then POST /queries. Observed Behavior Stuck in an infinite loop of: GET /.well-known/private-token-issuer-directory GET /issue/token-key-for-user-token (repeat…) No progression to the /issue or /queries endpoints. What I’ve Tried Verified JSON kebab-case and headers exactly match examples Confirmed SPKI DER is valid via openssl asn1parse Added Cache-Control headers Tested on real device, localhost url, and ngrok public URL Mocked a valid-looking token response Could you advise what additional requirement or format detail I’m missing that prevents from advancing past /issue/token-key-for-user-token? These are the main files: LiveLookupExtension.swift routes.swift service-config.json Thanks in advance!
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137
May ’25
Apple Media Service T&C pop-up
I had published an App which App Clip is supported. I have receipt complaints from user where the user will keep showing the "Apple Media Services Terms and Conditions Have Changed" right after user click on the "Open" button in the App Clips. What I had tried: Let user switch the current logged in Apple Id region to one of our support region. Log out and log in with an Apple Id which had no issue.
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Jan ’26
Device Activity Privacy Restrictions
Hey there! So, I'm trying to see what I'm able to do with the Device Activity Report Extension, and I have a few questions about the following quote: To protect the user’s privacy, your extension runs in a sandbox. This sandbox prevents your extension from making network requests or moving sensitive content outside the extension’s address space. In particular, what constitutes the address space for this extension? Can I save data to a UserDefaults object that only the extension can access? (Apps like Opal allow the user to label apps as "distracting" and "non-distracting", and I'm wondering how they do that!) From what I've read, I believe it cannot write to a shared app group or model (and I just want to confirm this) It also seems that there's nothing preventing it from reading data from the main app, so I'm just wondering if it's able to read data from an app group or model with no problem. Thanks in advance!
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170
Aug ’25
Screen time api on Mac?
Is there any way to use the screen time API on Mac?
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95
Activity
Jun ’25
How to reset system window private picker alert with Screen Capture Kit
Hi, I would like to reset system window private picker alert with ScreenCapture kit. i can reset the ScreenCapture permission with tccutil reset ScreenCapture. but it does not reset the system window private picker alert. i tried deleting the application directory from container and it does not help. the system window private picker alert uses the old approval i gave and it does not prompt a new alert. How can i starta with fresh screencapture kit settings for an app in testing? Thanks
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140
Activity
Jun ’25
Universal Links not working with subdomains without AASA on root domain
Hi all, I'm trying to set up universal links for my app but it's not working. What I want: cogover.com → Safari (website) - NOT my app *.cogover.com (any subdomain like abc.cogover.com) → My app What I did: Added applinks:*.cogover.com in Xcode Put AASA files on all subdomains They work fine (checked with curl) Problem: All links still open in Safari, not my app. I do not put AASA on my root domain cogover.com because I don't want open my app with root domain. I have checked TN3155: Debugging universal links | Apple Developer Documentation but it only say about universal link works with both root domain and subdomains. Weird thing I found: I checked how Salesforce does it - their *.force.com subdomains work perfectly. But when I tried to check their setup, (https://force.com/.well-known/apple-app-site-association) doesn't seem to exist either! So how does theirs work? Even stranger - Apple's CDN has their file cached at (https://app-site-association.cdn-apple.com/a/v1/force.com) but the actual domain doesn't serve it. Can Apple's CDN have a file cached even if it's not on the website anymore? Thanks for any help!
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160
Activity
Jul ’25
FinanceKit - Any way to get merchant location info from transactions?
Hi all — I’m building a Wallet-style transaction details view using FinanceKit and I’m running into a gap around merchant location. What I’m seeing FinanceKit gives me great core fields (amount, currency, status, dates, MCC, merchantName, transactionDescription), but I’m not seeing any address or place/location metadata on a Transaction. For example, a small/local merchant where I can plausibly infer a single place: Fetched transaction: Transaction( id: 8D142B16-3E0E-40B8-945A-2E7C0CF65F1D, accountID: 14939CF4-DBC3-4A9D-8292-5FEA495B8461, transactionAmount: 47.24 USD, creditDebitIndicator: .debit, transactionDescription: "Local Dental Care", originalTransactionDescription: "Local Dental Care", merchantCategoryCode: 8021, merchantName: "Local Dental Care", transactionType: .pointOfSale, status: .booked, transactionDate: 2025-08-20 22:27:50 +0000, postedDate: 2025-08-21 11:22:06 +0000 ) Because this appears to be a single-location practice, I can usually resolve it to a place using MapKit search heuristics. But for big-box chains, I don’t get enough signal to determine which store: Fetched transaction: Transaction( id: 3F8E9F74-7565-4D24-9038-8FD709184799, accountID: 14939CF4-DBC3-4A9D-8292-5FEA495B8461, transactionAmount: 441.77 USD, creditDebitIndicator: .debit, transactionDescription: "The Home Depot", originalTransactionDescription: "The Home Depot", merchantCategoryCode: 5200, merchantName: "The Home Depot", transactionType: .pointOfSale, status: .booked, transactionDate: 2023-12-27 23:07:02 +0000, postedDate: 2023-12-29 03:09:41 +0000 ) There’s no store number, address, phone, or any stable identifier. With hundreds of locations, I can’t deterministically choose a map pin or fetch the right brand assets. What I’m trying to achieve I’d like to replicate the Apple Wallet experience: show a small map snapshot and merchant visuals (logo/name that match Apple Maps / the Place Card) on the transaction detail screen. Without a location hint, I have to either: Ask users to pick a store manually, or Make a guess based on a coarse, app-defined region …neither of which feels great. Questions Is there any way in FinanceKit today to access merchant location or a resolvable identifier (e.g., address, city/state, store number, Apple Maps place identifier, network merchant ID/MID, terminal ID, etc.)? If not, can FinanceKit expose additional merchant metadata (even opt-in / privacy-preserving) to enable Wallet-like enrichment? A few examples that would unblock this: merchantAddress (or components: street/city/region/postalCode/country) merchantPhone (often unique per store) merchantIdentifier (stable per physical location, e.g., network merchant ID / store number) mapsPlaceURL or mapsPlaceIdentifier (linkage to the Apple Maps Place Card) brandAssetURL (logo/brand reference similar to what Wallet shows) With even one of the above, I could reliably: Render an accurate map snapshot, Fetch the correct brand assets, and Avoid prompting the user or inferring via fuzzy search. Context / constraints I do not want to (and shouldn’t need to) request or monitor the user’s device location to resolve a merchant’s store location. For small merchants, MapKit text search is often enough. For large chains, I need a store-level identifier. If there’s an existing field or recommended approach I’m missing, I’d love pointers. If not, please consider this a feature request for richer merchant metadata in FinanceKit so developers can build Wallet-quality transaction details. Thanks!
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65
Activity
Aug ’25
How do I launch the Outlook Mail app from my development app?
I want to start the mail application from the development application, but the mail application made by Apple starts. It doesn't work even if I change the default email application to Outlook. When you delete the Apple Mail app, Outlook starts. I want to automatically attach the generated pdf file to the email, but that doesn't work either. Please tell me how to code.
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107
Activity
Sep ’25
A Summary of the WWDC25 Group Lab - watchOS (Part 1)
At WWDC25 we launched a new type of Lab event for the developer community - Group Labs. A Group Lab is a panel Q&A designed for a large audience of developers. Group Labs are a unique opportunity for the community to submit questions directly to a panel of Apple engineers and designers. Here are the highlights from the WWDC25 Group Lab for watchOS (part 1). 1. I'm really excited about the new design system on all platforms. Liquid Glass is super cool. What do developers need to keep in mind when building for watchOS 26? To adopt the new design system, start with updating your app for watchOS 10 – If you have done so, your app will be mostly ready for watchOS 26. For more information, see Design and build apps for WatchOS 10. You can then look into Liquid Glass specific APIs to fine tune your app. This topic is covered in Adopting Liquid Glass. If you have SwiftUI views using any custom style, make sure they are still legible and fit with the new design system. 2. Something that really stood out to me were updates to the Smart Stack, with the system prioritizing Widgets when they're most relevant. Tell me more about these new opportunities for apps. Workout apps that record workouts using HealthKit may be automatically suggested on the watch face and appear in the Smart Stack without adding a widget. Relevant widgets are a great way to present information related to a date, location, point-of-interest type, sleep schedule, or fitness condition in the Smart Stack when it is relevant. Relevant widgets don't need to display a empty state view when they are not relevant. They are only shown in the Smart Stack when relevant. The watchOS 26 Design ToolKit in the Apple Design Resources includes a set of templates that you can use to layout your widgets. 3. Is the Wrist Flick gesture available to developers in the same way as Double Tap is? The system uses Wrist Flick to dismiss notifications and incoming calls, silence timers and alarms, or return to the watch face. There is no separate API for the Wrist Flick gesture. Apps that are using XCUIAutomation to make sure their user interface behaves as intended can use the XCUIDeviceHandGesture.flick to automate tests that verify that their app responds appropriately to the Wrist Flick gesture. For apps using automated testing, the XCUIDeviceHandGesture.doubleTap can be also be used to automate testing of the app with the Double Tap gesture. See XCUIDevice.perform(handGesture:) 4. Can HRV measurements be triggered on demand via API in watchOS? Guidelines or processes for enabling energy-intensive biometric sampling on development devices for IRB-approved research? You don’t have direct control on the sampling rate in watchOS. You can use HealthKit (HKQuantityTypeIdentifierHeartRateVariabilitySDNN, to be specific) to query the HRV data, once the system has sampled and persisted the data to HealthKit. If that doesn’t help, we suggest that you file a feedback report with your concrete use case for us to investigate. Specific to IRB-approved research using Apple Watch or its companion iPhone, you might want to look at this FAQ and SensorKit to see if they can be of any help. 5. What is the best advice for someone who is new to making a watchOS app that’s been on iOS and iPadOS? You can start with exploring the system experience features on watchOS, such as notifications, controls, and widgets, and getting familiar with the system spaces, like Smart Stack, watch face, and control center. Knowing the watchOS app design principles and practices is important as well. Design and build apps for WatchOS 10 is a great resource for this topic. SwiftUI is an amazing across-platform framework, and you will use it to create your watchOS app. If you're already using it, great! Keep in mind some watch-only constraints. Comparing to iPhone or iPad, Apple Watch has a limited battery and smaller screen size, which significantly impacts how people use your app and how your app works. 6. Was there any extension this year to the 7 day limit on querying Apple Health data on the watch? There is no change on the limit this year. You can get this official limit at runtime using earliestPermittedSampleDate. There are some exceptions, and so don't be surprised if you see some data types are retained longer. The companion iPhone holds the full set of the health data. If you need to access the health data that has been purged from the Apple Watch, consider doing it with your iOS app, and then passing the result to your watchOS app.
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Activity
Jul ’25
[iOS 26] [PushToTalk] Not receiving microphone PCM sample when Transmission Starts from System UI.
Steps To reproduce: Login to application and App has joined the PTC channel. Push the application to background and Lock the device. From the System UI press the talk button which will start transmit. Audio Session has been activated and Audio unit has been initialised properly. On terminator side no media is being played out. Issue observed consistently on specific models which has configured audio codec with Stereo type. More details are added : FB20281626
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370
Activity
Oct ’25
Incremental sync Calendar data
I'm developing an IOS time management app, and want to sync data from ios local calendar. How to incrementally synchronize data after full synchronization?
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73
Activity
Jan ’26
WebDomain.token always returns nil - What am I doing wrong?
I'm new to the Screen Time API and trying to block custom websites, but I can't get WebDomain tokens to work. When I create a WebDomain like WebDomain(domain: "reddit.com"), the token property is always nil. I have proper authorization and the app works fine for blocking apps, but website blocking just won't work. I'm confused because I see apps like JOMO that let users type in any website domain and successfully block it using Screen Time API. They have the same 49 domain limit and only ask for Screen Time permission, so they must be using the same API I am. But somehow their WebDomain tokens work and mine don't. I've tried creating the tokens right after getting authorization and during the FamilyActivityPicker session, but still get nil. Am I missing some setup step or API call that makes WebDomain tokens valid? Any help would be really appreciated since I'm stuck on this.
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74
Activity
Aug ’25
先调用isEligibleForAgeFeatures,返回YES后,调用requestEligibility,不会弹出是否分享年龄框的提示
[MTAgeRangeService requestEligibility:^(BOOL eligible) { if (eligible) { //您应用程序的用户所在的地区,需要执行特定年龄相关义务 [MTAgeRangeService requestAgeRangeWithAgeGates:18 in:[ViewU getCurrentVC] completion:^(enum ARResponseType responseType, ARAgeRange * _Nullable ageRange, NSError * _Nullable error) { [weakself.ageRangeLoadingView dissmiss]; self->_ageRangeLoadingView = nil; if (responseType == ARResponseTypeSharing) { //用户同意并分享了年龄范围 if ([ageRange.lowerBound intValue] >= 18) { //满18岁可以注册 }else{ //不到18岁不能注册,提示一下 } }else{ //用户拒绝或者其他未知错误,需要提示 }else{ } } }] ; }else{ }];
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172
Activity
Dec ’25
FInd My APP issue
find my在添加配件是,持续一直卡在“即将完成设置”这一步.这是由于什么原因呢?而且一直保持很长时间,也不会退出,也不会提示任何错误信息。
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113
Activity
Oct ’25
Action Extensions: How do Amazon & Google open their apps?
Both follow the same pattern: show the image that is being shared along with a CTA button about doing something with it in their app. When you tap the button, their app opens. Is there some kind of magic conditions that tapping the button creates that makes extensionContext.open(_ URL: URL, completionHandler: ((Bool) -> Void)?) accept a URL for opening the app? Or are they just using the "walk the responder chain" hack and using the user's intent to do something in their app as sufficient justification for using it? I've tried opening a registered URL scheme for my app synchronously with the button tap, but it still is refusing to open (callback returns false).
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62
Activity
Nov ’25
FinanceKit: Apple Savings transactions missing source account information
When fetching Apple Savings transactions via FinanceKit, the data is missing key context about where the deposit originated from. Here’s an example transaction I retrieved: Transaction( id: 77371A0C-7122-42C7-BEBC-85BDF654AD2B, accountID: 68D9FE9D-6DA6-4A27-BB9D-19209CD29A56, transactionAmount: 1.46 USD, creditDebitIndicator: .credit, transactionDescription: "Deposit", originalTransactionDescription: "", merchantCategoryCode: nil, merchantName: nil, transactionType: .deposit, status: .booked, transactionDate: 2025-08-20 13:44:26 +0000, postedDate: 2025-08-20 13:44:26 +0000 ) As shown: transactionDescription is just "Deposit" merchantName is nil No indication of the source account In contrast, the Wallet app clearly shows context for Apple Savings account deposits, such as: "Apple Card" (daily cash) "Bank of America" (external transfer) "Interest Paid" (we do see "Interest" come through correctly) Without this metadata, third-party apps cannot replicate Wallet’s clarity about where a deposit came from. Every deposit simply appears as "Deposit", which is ambiguous. Request: Please expose additional metadata for Apple Savings account transactions, for example: sourceAccountName (e.g. “Apple Card” or “Bank of America”) transactionOriginType (cashback, external bank transfer, interest) institutionIdentifier or similar for external banks This would allow developers to show clear, Wallet-quality transaction details and avoid confusing users. Impact: The lack of source info makes Savings deposits nearly indistinguishable from one another, even though Wallet provides this context. For apps leveraging FinanceKit, this results in a poorer experience compared to Apple’s own Wallet. Thanks!
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111
Activity
Aug ’25
The frequency of uwb background ranging
Is there a way to increase the frequency of UWB background ranging?
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104
Activity
Apr ’25
On-Demand Resources with Initial Install Tags Are Frequently Unavailable at First Launch
Hello, Because our app package size is relatively large, part of our resources needs to be delivered through Apple-hosted asset packs. If we use the Background Assets framework to download these Apple-hosted packs, our app would only be able to support devices running iOS 26 or later. To maintain compatibility with a broader range of iOS versions, we chose to use iOS On-Demand Resources instead. However, during actual use, we found that even when these packs are marked with the initial install tag, there is still a fairly high probability (around 40%) that they are not available on the first screen after the app is launched for the first time. When we try to access them through conditionallyBeginAccessingResourcesWithCompletionHandler, the resources are unavailable, which forces us to download them again. During testing, we added event tracking and found that out of 22 users who downloaded the app, 9 had to re-download these resource packs on first launch. Each of these packs marked with the initial install tag is about 300 MB in size. We have also made sure to follow the NSBundleResourceRequest limitation that no more than 2000 × 1000 × 1000 bytes of resources should be accessed at the same time. We would like to understand why these packs, even though they are marked as initial install, still have such a high probability (around 40%) of being unavailable on the first screen at first launch.
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2d
Question about Shield customization limits in ManagedSettingsUI (videos, text length, personalization)
Hi everyone, I’m currently developing a parental control app that uses the Screen Time API (FamilyControls, ManagedSettings, DeviceActivity). I have a question regarding the customization limits of the Shield UI in ManagedSettingsUI. From the documentation, I understand that we can customize the ShieldConfiguration (background color, blur style, icon, title, subtitle, button labels, etc.). However, I’d like to clarify a few points before finalizing the design: 1. Is it allowed (or technically possible) to display custom media content, such as videos, animations, or interactive elements, inside a custom Shield? 2. Are there limitations on the text length for the title and subtitle fields (e.g. maximum number of characters, multiline support, truncation behavior)? 3. Can the Shield be personalized per user (for example, showing a different title or color scheme based on user preferences or device state)? 4. Are there App Store Review restrictions or UI guidelines that define what a Shield should or should not contain (for instance, whether the Shield can resemble a mini-app experience)? I want to ensure that the implementation fully complies with Apple’s technical and design expectations before submission. Thanks in advance for any official clarification or best practices on how far we can go with Shield customization! Best regards, Ferdinand
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84
Activity
Oct ’25
User-initiated sharing of Screen Time metrics (FamilyControls / DeviceActivity)
Hi, We’re building an iOS app that uses the Screen Time APIs (FamilyControls and DeviceActivity) to display a user’s own usage metrics inside the app. With the appropriate permissions granted, we are successfully reading and presenting metrics such as: Total screen time Device pickups These metrics are already visible to the user inside our app. We would now like to introduce a user-initiated “Share” feature. The idea is to: Render selected Screen Time metrics into a shareable image card generated locally on device. Present the standard iOS share sheet (UIActivityViewController). Allow the user to share that image to Messages, social apps, etc., if they choose. Important clarifications: This is fully user-initiated. The app does not automatically transmit Screen Time data. The metrics are already displayed in-app with user permission. The share asset would be generated locally. No background export or server-side posting would occur unless explicitly triggered by the user via the share sheet. We are seeking clarification on whether there are any policy or API restrictions around: Rendering Screen Time-derived metrics into a user-facing share card Allowing user-initiated export of those metrics via the standard iOS share flow Are there any additional privacy requirements, entitlement constraints, or App Review considerations we should be aware of when implementing this? Thanks in advance for any guidance.
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93
Activity
Feb ’26
Live Lookup flow stuck at /issue/token-key-for-user-token endpoint
Hi Apple engineering team, I’m trying to integrate the new Live Caller ID Lookup (PIR) on iOS using your pir-service-example code as well as a custom mock server in Vapor, but the extension never advances past the /issue/token-key-for-user-token step. I’ve tried both: 1. Official Example Cloned https://github.com/apple/pir-service-example Ran PIRService locally Confirmed that GET /.well-known/private-token-issuer-directory → 200 GET /issue/token-key-for-user-token → 200 (DER bytes, correct SPKI) No POST /issue ever fires 2. Mock Server (Vapor) Implemented all five endpoints (/config, /.well-known/private-token-issuer-directory, /issue/token-key-for-user-token, /issue, /queries) Verified with curl and openssl asn1parse that: GET /.well-known/private-token-issuer-directory Content-Type: application/private-token-issuer-directory { "issuer-request-uri":"https://…/issue", "token-keys":[…] } GET /issue/token-key-for-user-token Content-Type: application/octet-stream <DER bytes> Added Cache-Control: public, max-age=3600 on directory and SPKI Stubbed POST /issue to always return { "token": "" } Still no POST /issue request from the extension Reproduction Steps Install and enable a Live Lookup extension pointing to my server. Trigger an incoming call on device. Watch server logs—only see the two GETs, never /issue or /queries. Expected Behavior After fetching the SPKI DER, the framework should issue a POST /issue call (Privacy Pass flow) and then POST /queries. Observed Behavior Stuck in an infinite loop of: GET /.well-known/private-token-issuer-directory GET /issue/token-key-for-user-token (repeat…) No progression to the /issue or /queries endpoints. What I’ve Tried Verified JSON kebab-case and headers exactly match examples Confirmed SPKI DER is valid via openssl asn1parse Added Cache-Control headers Tested on real device, localhost url, and ngrok public URL Mocked a valid-looking token response Could you advise what additional requirement or format detail I’m missing that prevents from advancing past /issue/token-key-for-user-token? These are the main files: LiveLookupExtension.swift routes.swift service-config.json Thanks in advance!
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137
Activity
May ’25
Apple Media Service T&C pop-up
I had published an App which App Clip is supported. I have receipt complaints from user where the user will keep showing the "Apple Media Services Terms and Conditions Have Changed" right after user click on the "Open" button in the App Clips. What I had tried: Let user switch the current logged in Apple Id region to one of our support region. Log out and log in with an Apple Id which had no issue.
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98
Activity
Jan ’26
Device Activity Privacy Restrictions
Hey there! So, I'm trying to see what I'm able to do with the Device Activity Report Extension, and I have a few questions about the following quote: To protect the user’s privacy, your extension runs in a sandbox. This sandbox prevents your extension from making network requests or moving sensitive content outside the extension’s address space. In particular, what constitutes the address space for this extension? Can I save data to a UserDefaults object that only the extension can access? (Apps like Opal allow the user to label apps as "distracting" and "non-distracting", and I'm wondering how they do that!) From what I've read, I believe it cannot write to a shared app group or model (and I just want to confirm this) It also seems that there's nothing preventing it from reading data from the main app, so I'm just wondering if it's able to read data from an app group or model with no problem. Thanks in advance!
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170
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Aug ’25