Explore best practices for creating inclusive apps for users of Apple accessibility features and users from diverse backgrounds.

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IOHIDCheckAccess(kIOHIDRequestTypeListenEvent) does not work
I have an app that needs Input Monitoring permissions to get keyboard access in the background. I've attempted to use both IOHIDCheckAccess(kIOHIDRequestTypeListenEvent) and IOHIDRequestAccess(kIOHIDRequestTypeListenEvent), but they always return denied, even though I have given the permission for Input Monitoring to the app in Settings. Is there something I need to put in my Info.plist to enable this permission to work?
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VoiceOver Accessibility Tree out of sync with WKWebView contents
Hey, We've run into an issue where WKWebView contents are not always available for VoiceOver users. It seems to occur when WKWebView contents are loaded asynchronously. I have a sample project where this can be reproduced and a video showing the issue. See FB21257352 The only solution we currently see is forcing an update continuously using UIAccessibility.post(notification: .layoutChanged, argument: nil), but this is ofc a last resort as it may have other unintended side effects.
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Dec ’25
iOS 26 regression: `DeviceActivityEvent`: `eventDidReachThreshold` called immediately (instead of waiting till threshold is reached)
Hello Albert! I am experiencing some strange bugs around DeviceActivityEvents (part of the DeviceActivity framework) on iOS 26 / iOS 26.1 / iOS 26.2 beta: When creating a DeviceActivityEvent we can assign a threshold and applicationTokens. The idea is, that after the user has spent said threshold on said apps, eventDidReachThreshold() is called. The property includesPastActivity is set to false. On iOS 26 however, it happens (quite reliably after updating to a new beta seed) quite often that eventDidReachThreshold() is called immediately (after a couple of seconds) instead of waiting for the threshold to be met. Is anyone else seeing similar issues on iOS 26 / iOS 26.1 / iOS 26.2 beta? Only workaround I have found is to ask users to revoke and re-grant Screen Time permissions. This only holds for about two weeks though or at most until the next iOS 26 beta update is installed, so it is not a permanent solution unfortunately. Feedback (incl. sysdiagnoses and sample project) is filed under: FB18061981 FB18927456 One of our users has filed their own feedback request as well: FB20817853 Thanks a lot for any help on this!
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446
Nov ’25
Unable to set dialect of Chinese of AVSpeechSynthesisVoice in iOS 18
The AVSpeechSynthesizer on some iOS 18 device has a bug that it will read always read Chinese of: AVSpeechUtterance(string: "中文") // Any Chinese Content in the dialect specified by: Settings > Accessibility > Spoken Content > Voices > Chinese > Spoken Language instead of the dialect that I specified in AVSpeechUtterance.voice: AVSpeechSynthesisVoice(language: "zh-HK") // Cantonese AVSpeechSynthesisVoice(language: "zh-TW") // Mandarin However, setting Chinese dialect of AVSpeechSynthesisVoice by "zh-HK" or "zh-TW" has been working on iOS 17 and below. My app has a feature that requires reading sentences in Mandarin followed by Cantonese, i.e., both dialects is needed every time. Therefore, setting the dialect in Spoken Language of Settings is not a workaround to make my app to function correctly in iOS 18. Further to the above, I've also discovered that, if iOS 18 (in my case, 18.5 is tested) is freshly installed (not upgrading from iOS 17 or below, nor restoring backup after fresh installation of iOS 18), the bug above will not happen. However, if it was an upgrade from iOS 17 or below, or backup is restored (in my case, I freshly installed iOS 18.5 on a new iPhone and then restored a backup from another iPhone on iOS 16.2), the bug above happens. This bug puzzled me because I need both dialect of Chinese to be read aloud one by one, but as reported by many users, on most iOS 18 devices (since a fresh installation of latest iOS without upgrading or restoring is uncommon nowadays), my app will read Cantonese two times or Mandarin two times (depending on Spoken Language in Settings). It is the iOS 18 bug which made my app unable to perform the expected behavior. Would Apple developers look into this and advise if there are any possible workaround within the code of app to overcome this bug, or please fix this bug with an iOS 18 update. Thank you.
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Jun ’25
Fullscreen Detection
Hi, I want to detect if there is a fullscreen window on each screen. _AXUIElementGetWindow and kAXFullscreenAttribute methods work, but I have to be in a non-sandbox environment to use them. Is there any other way that also works? I don't think it's enough to judge if it's fullscreen by comparing the window size to the screen size, since it doesn't work on MacBook with notch, or the menu bar is set to 'auto-hide'. Thanks.
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Jul ’25
VoiceOver incorrect focus on modal alert
When my macOS Cocoa app displays a modal alert with beginSheetModal(for:completionHandler:), VoiceOver sometimes seems to focus on an "illegal" upper level, where any attempts at navigation will give the unhelpful response "Alert, dialog", until you "drill down" with VO + shift + down or switch apps. After that, things will work as expected. Is this a known bug? Does it happen to anybody else, or am I doing something wrong?
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Apr ’25
Accessible Speech Practice App - R Helper Launch
Hi Community, I'm excited to share R Helper, a speech practice app I built with accessibility as the core focus from day one. App Store: https://apps.apple.com/app/speak-r-clearly/id6751442522 WHY I BUILT THIS I personally struggled with R sound pronunciation growing up. It affected my confidence in school and job interviews. That experience taught me how important accessible practice tools are. R Helper helps children and adults practice R sounds with full accessibility support. ACCESSIBILITY FEATURES IMPLEMENTED VoiceOver - complete navigation and feedback Voice Control - hands-free operation Dynamic Type - scales to large accessibility sizes Reduce Motion - respects user preference Dark Mode - user controllable High Contrast compatibility Differentiate Without Color THE CHALLENGE Most speech practice apps ignore accessibility. I wanted to change that and prove that specialized educational apps can be fully accessible. KEY FEATURES Works 100% offline, no internet needed Zero data collection, privacy first Generous free tier with all accessibility features included 10 story missions with gamification 7 languages supported including RTL for Arabic LESSONS LEARNED Accessibility is not hard when you prioritize it from the start. VoiceOver labels and hints make a huge difference. Testing with accessibility features enabled is essential. Standard SwiftUI components handle most accessibility automatically. Reducing motion significantly helps users with vestibular issues. TECHNICAL DETAILS Built with SwiftUI, targets iOS 17 and up. Universal app for iPhone and iPad. Fully offline using CoreData and local storage. No third party analytics, privacy focused. QUESTIONS FOR THE COMMUNITY What accessibility features do you find users request most? How do you test accessibility features efficiently? WHATS NEXT I'm currently working on expanding the word library, adding more story content, improving haptic feedback Thanks for reading. Nour
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Guided Access Unresponsive After Period of Use
Hello, I'm observing a persistent and frustrating issue with an accessibility feature called Guided Access that seems to affect many users across different devices and iOS versions. Problem The triple-click gesture (side or home button) to activate Guided Access intermittently stops working after the device has been in normal use for a few days (typically 2-7 days) without a restart. I have done some debugging for Apple in FB16094026 but received no updates after 6 months. So I'm posting here in the hope that this will be solved sooner. A core accessibility feature shouldn't require daily device restarts to function reliably. Details: Guided Access is correctly enabled in Settings > Accessibility. Initially, the triple-click works perfectly. After a period of normal device use (2-7 days), the triple-click no longer triggers Guided Access in any app. Restarting the device temporarily resolves the issue, and Guided Access triple-click works again immediately after a reboot. However, the problem recurs after continued use. Simply toggling the Guided Access setting on/off does NOT fix it. Additional observation: Even trying to select Guided Access manually via the Accessibility Shortcut menu (if multiple shortcuts are enabled) sometimes fails to launch the feature when in this state. Affected: iPhones and iPads Observed on iOS/iPadOS 16, 17, and now 18, indicating it's a long-standing bug. Impact: Guided Access is a crucial accessibility feature for many users (for focus, special needs, parental controls, etc.). Its unreliable activation significantly disrupts daily workflows and reliance on this function. This issue appears to be widespread, with many reports across forums like Apple Support Communities and Reddit. For example, this post received over 1k upvotes. To see more examples please refer to FB16094026. Could Apple please investigate this bug urgently? Thanks.
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Apr ’25
Subpath for access to Silence Unknown Callers
Hi, Our app has a section where, we show to users how to activate "Silence Unknown Callers", because is a crucial feature for our app. But, we saw that 30% of users drop the process here, because we can't open directly that setting option in phone app. We are using this url scheme to open phone settings in iOS 18: if let url = URL(string: "App-prefs:com.apple.mobilephone") { UIApplication.shared.open(url) } But, we don't see other way to open directly the path "silence", like in iOS 17, with this url scheme: prefs:root=Phone&path=SILENCE_CALLS So, do you know if is possible open that option directly? We want to improve our accessibility. Thank you!
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Mar ’25
Components with Earcon haptic feedback for VoiceOver users
I want to understand which component types are intended to have an associated hint text, haptic feedback, or earcon associated with it for VoiceOver screen reader users. Is there a list somewhere or a HIG guideline for which transition types should have a sound? Some transitions in Apple apps generally include different beep sounds, such as opening a new screen screen dimming when a VoiceOver user swipes from the header / navbar to the body a scraping sound when swiping up or down a page. the beginning or end of the body section in Calculator when swiping from one row to the next. opening a pop up menu I would also appreciate any direction on what code strings are associated with these sounds and how custom components can capture these sounds or haptics or hints where it is expected? On the other hand, I don't want to get that info and then dictate that every component needs a specific beep type since these sounds appear to be used for specific purposes.
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May ’25
How to Implement Dynamic Type for UITextFields Without Resetting Data
Hello! I was doing some accessibility testing for my app and found out that when the user switches the text size, all of the data in the text fields is reset, which causes major disruption. I've tried looking for documentation, but all I've found is information on how to dynamically scale the UI for different text sizes, which I've already implemented. My guess is that every time Dynamic Type registers a change, it redraws my UI instead of just updating it. How can I make sure the data is not reset when the text size changes?
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Dec ’25
Discussion on Location Services and Green light (Will someone deaf or blind ever know when their location was last on?)
Haptic or Sound queue to allow for the accessibility of the blind (sound) and deaf population (haptic) for even knowing when location services and the camera were last used? Also, the grey notification rather than the purple notification for location services should appear for the full 24 hours after an application has used the app, if the correct description is within the "copy" of Settings The green light lets them know that the application has changed to the camera and fade out orange light both could even have subtle simply click sounds, like a shutter, big haptic, softer sound, but editable in Settings, of course
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May ’25
how accessible is enough for Accessibility Nutrition Labels?
My team has a robust digital accessibility program and processes for WCAG conformance in our apps. Because of this, there are definitely accessibility defects that get caught and addressed in order of impact and business priority like any other bug. Obviously we want to aim for 100% accessibility for our users, but it's a continual work in progress as new enhancements or changes are released. I'm stuck on the appropriate measurement to indicate support. If we have 50 common tasks and the most central 10 tasks are solid but some supporting (but also common) tasks have a contrast fail or accessibleLabel missing, does that make the whole app not supporting the feature? If "completing the task" is the rubric there are a whole range of interpretations for that. In a complex app, I anticipate that a group like ours will have strong support for many of the Accessibility Nutrition Labels accessibility features across tasks and devices, but realistically never be 100% free of defects for a given Apple Accessibility feature, even among core tasks. As I consider the next steps for Nutrition Labels, I do not see anything in the documentation that gives a sort of baseline or measurement for inclusion. We plan to test all steps to complete a task, and log defects accordingly with an assigned timeline for fixing them (as would be true for functional defects).
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kAXSelectedTextChangedNotification not received after restart, until launching Accessibility Inspector
I'm facing a bizarre issue with the Apple's Accessibility APIs. I am registering an AXObserver that listens for, among other things, the kAXSelectedTextChangedNotification. For many new users, the kAXSelectTextChangedNotification is not triggered, even though they have enabled Accessibility permission for the app. Other notifications are getting through (kAXWindowMovedNotification, kAXWindowResizedNotification, kAXValueChangedNotification etc - full list here), just not the kAXSelectedTextChangedNotification! We've found that we can reproduce the error by removing accessibility permission for the app and rebooting our computers. After restarting and reenabling accessibility permissions, the kAXSelectedTextChangedNotification was not received, even though other notifications were fine. Strangely, the issue can be resolved by launching Apple's Accessibility Inspector app on an impacted computer. Once the Accessibility Inspector is loaded, the kAXSelectedTextChangedNotifications start coming through as expected. This implies to me that either: We are missing some needed setup when starting the observers. Accessibility Inspector gets it right, thus ‘starting’ the system properly. Accessibility Inspector is using some Apple private APIs that we don’t have access to. Things I’ve tried: I've tried subscribing the AXSelectedTextChangedNotification to different AXUIElements, including the SystemWide element, the Application element, and children elements from the AXApplication. None of these received the kAXSelectedTextChangedNotification, until Accessibility Inspector is booted up. No surprises here, as Apple's documentation confirms that you should add the notification to the root Application AXUIElement if you want to receive notifications for all its children. I had a theory that the issue might be due to my code calling AXUIElementCreateApplication multiple times, possibly creating multiple "Applications" in Apple's Accessibility implementation. If that’s the case, the notifications might be sent to the wrong application AXUIElement. However, refactoring my code to only call AXUIElementCreateApplication once didn't resolve the issue. I thought the issue may be caused by subscribing the AXSelectedTextChangedNotification on the high-level application element (at odds with Apple's documentation). I've tried traversing the child AXUIElements until we find one with the kAXSelectedTextAttribute and then subscribing to that. This did not resolve the issue. I don’t think it's the correct path to continue exploring, given that the notifications are received correctly after AccessibilityInspector is launched. There is one exception to the above: if I add the kSelectedTextChangedNotification listener to a specific text field AXUIElement, I do receive the notification on that text field. However, this is not practical; I need a solution that will work for all text fields within an app. The Accessibility Inspector appears to be doing something that causes the selected-text-changed notifications to be correctly passed up to the high-level application AXUIElement. Another thought is that I could traverse the entire Accessibility hierarchy and add listeners to every subview that has the kAXSelectedTextAttribute. However, I don’t like this long-term solution. It will be slow and incomplete: new elements get added and removed frequently. I just want the kAXSelectedTextChangedNotification to be received by the high-level Application AXUIElement, which the documentation suggests it should be. I also have evidence that this can work, since notifications start coming through after Accessibility Inspector is launched. It’s just a matter of discovering how to replicate whatever Accessibility Inspector is doing. An interesting wrinkle: I implemented the 'traverse' strategy above, but was surprised by how few elements were in the hierarchy. Most apps only go down ~2-3 levels, which didn't seem right to me. Perhaps the Accessibility tree isn't fully initialized? I tried adding a 5-second delay to allow more initialization time, but it didn't change anything. Does anyone have any ideas? Here's our file.
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May ’25
Apple is lying about its commitment to accessibility on macOS
I've just received an email from Apple regarding the Global Accessibility Awareness Day and some forthcoming sessions to promote their accessibility features. What a joke. For many years, Apple refuses to provide the most basic accessibility requirement on macOS: LET USERS DISABLE ALL NON-CONSENSUAL UNSOLICITED ANIMATIONS AND OTHER UI CONVULSIONS. The scourge of animations started from macOS Lion. Yes, many of them can be, fortunately, disabled through some obscure Terminal commands (that is, if the user is lucky enough to discover them on some obscure internet resources). The "Reduce motion" control in System Settings is a fake option that doesn't do anything. And there are two most glaring accessibility violations that cannot be disabled: Scroll bar rollover highlight effect introduced on macOS 10.7.3. Every time you move the cursor over a scroll bar, the bar gets highlighted. It results in bringing the user's attention to random scroll bars for no reason whatsoever just because the cursor happens to pass over the bar at some point. HUNDREDS of unnecessary, annoying events of distraction daily! Expand/collapse animation of NSOutlineView (such as when we open/close a folder in the list view in the Finder, as well as any other app that's using outline views). It's extremely annoying, distracting, and time-wasting. All feedback submitted about this through the years remains mostly ignored (except for a few cases where I received some ridiculous replies from employees who, apparently, are barely familiar with Macs in general). Apple does NOT care about accessibility. Not only this, but it's obvious that Apple is, in fact, intentionally abusing those users who can't tolerate distracting, time-wasting animations and UI convulsions.
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Apr ’25
Download Voices screen
System settings => Accessibility => System Voice => the little (i) beside the pulldown => Voices => THIS SCREEN will allow you to download Premium Voices Is there a way to trigger this screen programmatically. Or at least a link to get my users there without having to dig thru that swamp of screens?
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527
Nov ’25