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How to identify which minor user's authorization has been revoked by the parent/guardian?
I followed the method outlined in Apple's documentation to test "Revocation of Consent." Our server received the notification sent by Apple, but the parsed data only contains the following content (some data has been modified for privacy, but the fields remain unchanged): { "receiptType": "Sandbox", "bundleId": "com.xxx.xxxxx", "receiptCreationDate": 1764932591296, "requestDate": 1764932591296, "originalPurchaseDate": 1375340400000, "originalApplicationVersion": "1.0", "appTransactionId": "705020051250081000", "originalPlatform": "iOS" } How can we identify that "a parent/guardian has revoked authorization for a specific user"? We are unable to determine which minor user should be restricted from using certain features of our app. I hope to receive a prompt response from Apple's technical experts! Thanks A Lot !
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115
Dec ’25
Error Blocking Phone Numbers
In my case, when I try to block calls on iOS 26, the blocking doesn't occur; the scenarios seem intermittent. If I create two CallDirectory extensions, the first blocks the numbers, but the second doesn't. Interestingly, the extension marks the number as suspicious. There's also a case where, on iOS 26 on an iPhone 16 Pro, the functionality doesn't work at all. I'd like to know if there have been any changes to the use of CallKit in iOS 26, because users of my app on iOS 18 and below report successful blocking.
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232
Dec ’25
QuickLook Thumbnailing returns stale macOS 26 folder icon
On macOS 26, I've run into a situation when a user “customizes” a folder icon with Finder by assigning/changing an SF Symbol or an emoji, QLThumbnailGenerator keeps returning the stale initially retrieved folder icon (no matter whether it had been customized or not) until my app quits. After the app is re-launched, the icon is correctly retrieved once again. let generator = QLThumbnailGenerator.shared let size: CGSize = CGSize(width: 64, height: 64) let request = QLThumbnailGenerator.Request(fileAt: url, size: size, scale: NSScreen.main!.backingScaleFactor, representationTypes: .icon) request.iconMode = true do { let thumb = try await generator.generateBestRepresentation(for: request) thumb.nsImage.size = size return thumb.nsImage } catch { print("generateThumbnail: \(error)") return nil } It seems like the QuickLook Thumbnailing cache does not invalidate automatically upon folder customization. Is there any way to manually invalidate the QuickLook Thumbnailing cache?
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465
Dec ’25
CallKit VoIP → App launch → Auto WebRTC/MobileRTC connection: Does Apple allow this flow?
Our app receives a CallKit VoIP call. When the user taps “Answer”, the app launches and automatically connects to a real-time audio session using WebRTC or MobileRTC. We would like to confirm whether the following flow (“CallKit Answer → app opens → automatic WebRTC or MobileRTC audio session connection”) complies with Apple’s VoIP Push / CallKit policy. In addition, our service also provides real-time video-class functionality using the Zoom Meeting SDK (MobileRTC). When an incoming CallKit VoIP call is answered, the app launches and the user is automatically taken to the Zoom-based video lesson flow: the app opens → the user is landed on the Zoom Meeting pre-meeting room → MobileRTC initializes immediately. In the pre-meeting room, audio and video streams can already be active and MobileRTC establishes a connection, but the actual meeting screen is not joined until the user explicitly taps “Join”. We would like to confirm whether this flow for video lessons (“CallKit Answer → app opens → pre-meeting room (audio/video active) → user taps ‘Join’ → enter actual meeting”) is also compliant with Apple’s VoIP Push and CallKit policy.
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121
Dec ’25
About AppShortcuts limit
I developed a shortcut feature for my app using the AppIntents framework, which can display a maximum of 10 shortcuts in the Shortcuts app. However, I've noticed that apps like Tesla and Porsche have a significantly larger number of shortcuts, far exceeding 10. After searching online, I found that they might be using Intent Extensions and the SiriKit framework. I customized an Intent through SiriKit, checked the option for "Intent is user-configurable in the Shortcuts app" and "Add to Siri." I can find this shortcut when I search for it, but it does not appear on the homepage or under the app category. Is there any way to resolve this?
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246
Aug ’25
TipKit popover Issues...
I have been trying to use TipKit popovers in my App. They all behave as expected in the simulator but on a real device I am seeing some strange behaviors. I have a couple of instances of where the tip is displaying an entire sheet instead of just the popover. In another case I cannot dismiss the Tip. Has anyone seen these behaviors and are there known issues/workarounds for this? I am reluctant to use something that works perfectly in the simulator but gives unpredictable results on a device. Not a good user experience in my opinion.
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218
Aug ’25
Potential iOS26 regression on AASA file not download on app install
Original discussion pre iOS 26 Our app uses Auth0 with HTTPS callback, we've found the issue where AASA file is not ready immediately when app is initially launched, which is the exact issue from the above link. The issue seems mostly fixed on later versions on iOS 18, however, we are seeing some indications of a regression on iOS 26. Here's some measurement over the last week. | Platform | iOS 18 | iOS 26 | |---------------|----------|--------| | Adoption rate | 55% | 45% | | Issue seen | 1 | 5 | | Recover? | Yes | No | This only 1 iOS 18 instance was able to recover after 1 second after the first try, however, all iOS 26 instances were not able to recover in couple tens of seconds and less than 1 minute, the user eventually gave up. Is there a way to force app to update AASA file? Are there some iOS setting (like using a VPN) that could potentially downgrade the AASA fetch? Related Auth0 discussion: https://community.auth0.com/t/ios-application-not- recognizing-auth0-associated-domain/134847/27
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Dec ’25
WeatherKit DayWeather::date Timezone Issue
I use WeatherKit with Swift to get multiple cities weather by longitude and latitude. But I use this API in WeatherService for daily forecast: final public func weather<T>(for location: CLLocation, including dataSet: WeatherQuery<T>) async throws -> T And I found there is something wired: The date of WeatherKit::DayWeather is based on my device's timezone settings. Tokyo's Day Weather is start at UTC+8, New York' Day Weather is start UTC+8. Is there any way to set timezone correctly?
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133
Apr ’25
iOS 26 fails to automatically switch to [system settings - personal hotspot ] directly from application ]
The API we used: NSURL *url = [NSURL URLWithString:@"App-Prefs:INTERNET_TETHERING"]; The link provided by Apple engineer: https://developer.apple.com/forums/thread/761314 I did not find any URL in the link that leads to the secondary menu of system settings. Does this suggest that iOS 26 does not support this functionality? Moreover, is it possible that versions of iOS 18 and earlier may also not support this behavior in the future?
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146
Nov ’25
CallKit issue
In iOS 26.1, after my app answers a VoIP call on the lock screen, tapping the bottom-left "More" button doesn't bring up the app icon to jump to the app. The same scenario works normally on iOS 26. How can I resolve this issue?
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124
Dec ’25
Best practice for using a single EKEventStore instance across threads?
Hello, Regarding EKEventStore, the WWDC session mentions that “you should only have one of these for your application.” In my app, I need to use the instance on both the main thread and a background thread, and I would like to share a single instance across them. However, EKEventStore is a non-sendable type, so it cannot be shared across different isolation domains. I would like to know what the recommended best practice is for this situation. Also, do I need to protect the instance from data races by using a lock? Thank you.
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Dec ’25
[Texas SB 2420] How to Retrieve Parental Consent Status
After reading the news below, we are currently working on updating our app in preparation for the enforcement of Texas SB 2420. https://developer.apple.com/news/?id=2ezb6jhj Based on the information in the announcement, we understand that parents will be able to revoke their consent for apps. However, we are unsure how an app is supposed to obtain or verify the parent’s consent status in the first place. We reviewed the Declared Age Range API and PermissionKit’s Significant Change API, but could not find any functionality related to this. If anyone with expertise on this topic has insight, we would greatly appreciate your guidance. Thank you in advance.
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202
Dec ’25
PDFKit Sizes increases
Hey there, I have a slight problem which is also known on the web, but I couldn't find any answers... My iOS App is working with documents like pdf and images. It is made to handle invoices and upload them to an external service. The app's job is to compress those pdfs and images. Sadly the PDFKit's PDFDocument increases its size just after importing it with pdfDocument = PDFDocument(url: url) and later exporting it to an pdf file again with data = pdf.dataRepresentation() without ever modifying it. It increases by server KB after each export. Do you have any alternatives to the renderer dataRepresentation() or a general PDFKit alternative Thanks
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543
Dec ’25
Screen Time Counting App Usage While Shield Is Displayed
Hi all, I’m working on a Screen Time app using Managed Settings and ShieldConfiguration, and I’ve run into an issue where screen time is still being counted while the shield is shown — even when the user never interacts with the underlying app content. This happens both when I use the default shield and when I configure a custom ShieldConfiguration with a ShieldAction. As long as the shield is visible, the time appears to count toward the app’s usage. For example, if I leave the shield up for 20 minutes, Screen Time logs it as 20 minutes of app usage — even if no content is accessed behind the shield. Is this expected behavior? Is there a way to prevent Screen Time from counting time while the shield is shown? Any insights or workarounds would be greatly appreciated! Thanks, Connor
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161
Jul ’25
Crash on iOS: UIKitCore -[UIApplication _run] with CFRunLoopRun
Hello everyone, I’m experiencing a crash in my iOS application that’s occurring predominantly on devices running iOS 16.6.0. The crash seems to happen on the main thread during a UI operation, specifically within the UIKitCore framework. Crash Log Summary Thread 0 Crashed: 0 libsystem_kernel.dylib 0xca4 mach_msg2_trap + 8 1 libsystem_kernel.dylib 0x13b74 mach_msg2_internal + 80 2 libsystem_kernel.dylib 0x13e4c mach_msg_overwrite + 540 3 libsystem_kernel.dylib 0x11e8 mach_msg + 24 4 CoreFoundation 0x79024 __CFRunLoopServiceMachPort + 160 5 CoreFoundation 0x7a250 __CFRunLoopRun + 1208 6 CoreFoundation 0x7f3ec CFRunLoopRunSpecific + 612 7 GraphicsServices 0x135c GSEventRunModal + 164 8 UIKitCore 0x39cf58 -[UIApplication _run] + 888 9 UIKitCore 0x39cbbc UIApplicationMain + 340 10 MyApp 0x24050 main + 51 (AppDelegate.swift:51) 11 ??? 0x1d3594dec (Missing) I’ve attached the full crash crashlog.txt and would appreciate any insights or recommendations on how to resolve this issue.
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1.4k
Apr ’25
In Core Spotlight, it requires four consecutive characters to index the content. Only through title or displayName can the content be indexed.
In Core Spotlight, one can only index content by using title or displayName, and it requires four consecutive characters for indexing. These situations occurred in iOS 17 and 18. In iOS 16, I could not only index content by title or displayName, but also by keyword. Moreover, there was no restriction of requiring four consecutive characters. I could index my app content by simply inputting one character. Here is my code.https://github.com/kritto1/corespotlight-bug-test/tree/main @available(iOS 14, *) func addItemToIndex(_ item: QSpotlightItem) { let attributeSet = CSSearchableItemAttributeSet(contentType: .item) attributeSet.title = item.title attributeSet.displayName = item.title attributeSet.contentDescription = item.contentDescription attributeSet.keywords = item.keywords attributeSet.thumbnailData = item.thumbnailImage attributeSet.contactKeywords = item.keywords attributeSet.supportsNavigation = true let searchableItem = CSSearchableItem(uniqueIdentifier: item.id, domainIdentifier: "com.qunar.iphone.spotlight", attributeSet: attributeSet) searchableItem.expirationDate = .distantFuture CSSearchableIndex.default().indexSearchableItems([searchableItem]) { error in if let error = error { } else { } } } @available(iOS 14, *) func addToSpotlightIndex() { let spotlightHotel = QSpotlightItem( id: "corespotlight_1", title: "查询酒店住宿", contentDescription: "", thumbnailImage: UIImage(named: "img2")?.pngData(), keywords: ["酒店", "住宿"] ) addItemToIndex(spotlightHotel) let spotlightFlight = QSpotlightItem( id: "corespotlight_2", title: "查询和预订机票", contentDescription: "", thumbnailImage: UIImage(named: "img2")?.pngData(), keywords: ["查询", "预订", "机票"] ) addItemToIndex(spotlightFlight) let spotlightSight = QSpotlightItem( id: "corespotlight_3", title: "查询预订门票", contentDescription: "", thumbnailImage: UIImage(named: "img2")?.pngData(), keywords: ["查询", "预订", "门票"] ) addItemToIndex(spotlightSight) }
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177
Apr ’25
App Clip still loads even after being deactivated in App Store Connect (48+ hours later)
Hi everyone, We’re experiencing a persistent issue with an App Clip Experience that continues to load on iOS devices even after being deactivated in App Store Connect more than 48 hours ago. Issue Summary An App Clip Experience tied to the URL pattern https://srgplus.com/u/... keeps appearing when scanning NFC tags or QR codes, despite being removed from App Store Connect. Key Details The App Clip Experience was deactivated over 48 hours ago. iOS still launches the App Clip when scanning NFC tags or QR codes that match the URL structure. The specific token-based App Clip Experience (for example: https://srgplus.com/u/iohgqa) was removed, but iOS still loads an App Clip as if the Experience exists. It seems like iOS is falling back to a previously registered base URL Pattern such as: https://srgplus.com/u or possibly even https://srgplus.com The problem: This fallback App Clip is not visible anywhere in App Store Connect → Advanced App Clip Experiences. So we cannot delete or modify it. The behavior persists across: Multiple devices Different networks After clearing device caches After reinstalling our app Even after scanning using devices that never used this App Clip before This makes us believe that the App Clip Experience may be: Cached on Apple’s servers Or orphaned/hidden in App Store Connect Or not properly removed from the URL pattern registry Steps to Reproduce Deactivate an App Clip Experience in App Store Connect. Wait 48 hours or more. Scan an NFC tag or QR code pointing to a previously used URL pattern. App Clip still appears, even though no active Experience exists. Expected Behavior App Clip should stop appearing once the Experience is deactivated and removed. Actual Behavior App Clip continues to load indefinitely, suggesting a cached or orphaned configuration. Question Has anyone encountered similar behavior? Is there a way to request a manual purge of App Clip URL patterns or cached Experiences from Apple’s side? Any guidance or insights would be greatly appreciated. Thank you!
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Nov ’25