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“Visual Studio Maui IOS”

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Bluetooth audio packet alignment
We’re evaluating a Bluetooth device that supports Hands Free Profile (HFP) as the “Hands-Free Unit”. You can think of this as a Bluetooth telephone headset. This device interacts with our iOS application. We observed the following. The iPhone 17 HFP Wide-Band Speech (WBS) mSBC decoder requires the WBS packet (H2 header + mSBC frame) to be sent aligned. Aligned meaning, the H2 header must be first in every packet. The WBS packet cannot span multiple eSCO packets or else the iPhone will discard the audio. This is a different implementation than the iPad (iPad Pro 11-inch M4) , presumably due to Apple’s new N1 chip. In other words, we’ve identified that older iPhones and iPads do not require this alignment. They have implemented a stateful parser/decoder of the HFP WBS audio. A quick picture to help illustrate. The iPhone 17 requires: | Frame | Frame | Frame | Frame | However, a Bluetooth implementation we are evaluating does: | me Fra | me Fra | me Fra | me Fra | Does Apple intend to keep this implemen
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Reply to Crash while presenting a media picker for Music
Thanks so much for the post. The crash you are experiencing: remoteViewController cannot be nil... We likely got a nil remoteViewController? Even though the error says Music is crashing, it almost always means is your app allow to access the Music app's UI. The app is requires to explicitly declare that app needs access to the user's Apple Music / Media Library. If you don't include this key, the system will instantly kill the process trying to access it, resulting in the exact crash log you posted I think, have not see it forever, so I’m digging into my small brain. Do you have in your info.plist the NSAppleMusicUsageDescription. https://developer.apple.com/documentation/bundleresources/information-property-list/nsapplemusicusagedescription Are you testing in the simulator? The iOS Simulator does not have the Apple Music app installed. I believe that could cause the issue? You must test MPMediaPickerController on a physical iOS device. If you are testing on a physical device and the user ha
Topic: Media Technologies SubTopic: Audio Tags:
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SwiftUI Instruments tool error: "Time Profiler: Time Profiler does not support the iOS platform"
I am trying to run the SwiftUI instruments tool for an iOS app and every time I run it, it either switches from giving me the Time Profiler: Time Profiler does not support the iOS platform error, or I end up with no data at all; however, when I run just the Time Profiler by itself it works fine. I am running this on a physical device
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Reply to ppq.apple.com returning 502 Bad Gateway - Unable to verify developer apps on device
Well, that was exciting |-: [quote='879472022, simonsruggi, /thread/818403?answerId=879472022#879472022, /profile/simonsruggi'] It looks like Apple fixed the issue. [/quote] Yep. I can’t really go into details here, other than to say that: ppq.apple.com is a service on the critical path for the trusted execution of code in some situations [1]. It was having problems. Those are now fixed. I don’t have time to read through all 10 pages of posts on this thread. So, if there’s something you want to draw my attention to here, I recommend that you start a new thread with the details. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com [1] There might be more info about it on the enterprise support side of things, but the only developer-focused reference I could find for it was in an old Xcode help page: Manually trust a developer on iOS.
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Mac Assigning NSManagedObject to NSPersistentStore
Hello, I have a iOS app I was looking at porting to Mac. I'm having an issue with both the Mac (Designed for iPad) and Mac Catalyst Destinations. I can't test Mac due to too many build issues. I'm trying to assign a new NSManagedObject into a NSPersistentStore. let object = MyObject(context: context) context.assign(object, to: nsPersistentStore) This works fine for iOS/iOS Simulator/iPhone/iPad. But on the Mac it's crashing with FAULT: NSInvalidArgumentException: Can't assign an object to a store that does not contain the object's entity.; { Thread 1: Can't assign an object to a store that does not contain the object's entity.
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TestFlight install fails with “The requested app is not available or doesn’t exist” after successful upload (Flutter app)
Hello, I’m facing an issue installing my app from TestFlight on a physical iPhone device. App & Environment App: Desi Charades Framework: Flutter Distribution: TestFlight Build status: Upload completed Device: iPhone 7+ iOS version: 15.6 Tester type: Internal Apple Developer Program: Paid account Issue Description After uploading a build successfully to App Store Connect and adding it to TestFlight, the app appears in TestFlight with the Install button. However, when I tap Install, I receive the following error on the device: “Could not install Desi Charades App. The requested app is not available or doesn’t exist.” The build is visible in TestFlight, but installation fails immediately. Upload Warnings During archive upload, App Store Connect shows the following warnings: Upload Symbols Failed The archive did not include a dSYM for: ffmpegkit.framework libavcodec.framework libavdevice.framework The app uses ffmpeg-kit (Flutter plugin), which ships precompiled frameworks. Steps Already Checked Bui
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Reply to App group broken on Sequoia
I’m not sure what’s going wrong here but I have a couple of diagnostics tests for you to run. Both require you to get your file provider started. Once you have that: Use launchctl procinfo to check whether the process has the entitlements validated flag set. App Groups: macOS vs iOS: Working Towards Harmony has an explanation of how to do this. Use codesign to check the entitlements of the running process: % codesign -d --entitlements - PID where PID is the process ID. What do you see? Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Code Signing SubTopic: Entitlements Tags:
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Auto-renewable subscriptions stuck in "Waiting for Review" causing StoreKit products unavailable during App Review
Hi Apple Developer Forums, I am experiencing a repeated issue with auto-renewable subscriptions during App Review for my iOS app. The app uses RevenueCat for subscription management. The subscription products exist in App Store Connect and are correctly configured, but they remain in Waiting for Review. During App Review, the reviewer attempts to access the subscription paywall and receives an error stating that subscriptions are unavailable. This appears to happen because StoreKit cannot fetch the products while they are still waiting for review. This creates a loop: Subscriptions exist in App Store Connect and are in Waiting for Review App Review installs the app StoreKit cannot return the subscription products yet RevenueCat returns an offerings_fetch_failed error The reviewer sees subscriptions unavailable The app is rejected before the subscriptions are approved We have thoroughly verified the configuration: • Subscription group exists • All products are inside the group • Product IDs match exac
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Reply to XCTest Bundle cannot access local network.
[quote='879236022, ADietz, /thread/817792?answerId=879236022#879236022, /profile/ADietz'] each needs some level of code modification of the app under test? [/quote] No, and yes. The first approach doesn’t require you to modify the app under test because the actual local networking ends up being done by your Mac. However, it’s a lot trickier to set up because it requires you to bring up a non-local server. The second approach is easier to set up but it does require support within the app under test. Hmmm, and that suggests a third approach, which is a variant of the second one but with the proxy running in a completely different app on the test device. For this to work you’d have to ensure that this proxy app runs indefinitely in the background. That’s tricky to do in production — see iOS Background Execution Limits — but you can probably make it work in this just-for-testing scenario. So, something like this: Create an ‘audio streaming’ app that continuously plays silent audio and implements the sort
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Latest Beta Version Breaks Xcode Testing Builds on Physical devices.
This is a grave issue I am facing while testing my apps on my personal device. This is the error I seem to be getting: The application could not be launched because the Developer App Certificate is not trusted. And on the phone side, this is the message: Unable to Verify App. An internet connection is required to verify the trust of the developer Apple Development... Before I receive any recommendations, such as deleting Xcode or restarting my device, I would like to clarify that I have already taken all necessary precautions. The application I was testing appeared to function correctly in the morning a few hours prior to the update. However, after upgrading to the latest beta builds, iOS 26.4 beta and the latest macOS beta, this issue has become a recurring problem. I would greatly appreciate your assistance in resolving this matter, as it is of utmost importance to me.
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Unable to test my apps, crashing with provisioning profile validation
Since around September (iOS 26 release), i'm unable to test my app normally. It says internet connection is required to verify [my certificate id], or just crashing. All terms and conditions accepted, everything is valid, certificates are OK. Reinstallation via xcode does not help. Removal of provisioning profile, generating new does not help. Revoking of certificate and generating new does for around week, then it happens again, but do i need to do it every week now? In logs i see the following: default amfid validation failed because of missing trust and/or authorization (0xe8008026) error amfid not valid: 0xe8008026: The provisioning profile requires online authorization. error amfid Unexpected MISError (0xe8008026): The provisioning profile requires online authorization. default +0300 amfid /private/var/containers/Bundle/Application/5B8E560E-75B2-46EF-8606-02072D99E9CF//Frameworks/oss.dylib not valid: Error Domain=AppleMobileFileIntegrityError Code=-400 An unknown error was encountered UserInfo={
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"Unable to verify app" cannot verify trust of developer
I've seen a couple posts on reddit today but wanted to call out here because I think it may be a more widespread issue - I keep getting an error trying to open my iOS app saying Unable to verify app - An internet connection is required to verify trust of the developer.... I have never gotten this issue before and did not change anything in my build settings from my last successful build of the app to now. The directions it gives me are to go to Settings > General > VPN and Device Management and trust my developer certificate from there, but that doesn't work either. The first time I tried this, the developer certificate wasn't there at all, then I looked at Reddit and saw people recommending to download the developer certificate to solve the issue, but doing this did not fix the error either. Just looking to see if anyone else has encountered this or what the fix might be.
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No Response from Support – Submitted February 15
Hello everyone, I’m posting here to see if someone from the Apple team or the community could help or provide guidance regarding my Apple Developer Program enrollment. My name is Bruno, and I represent 2B Digital LLC. I submitted my enrollment on February 15, under Application ID: 946JTL58KD, with the intention of developing and distributing iOS applications. Since then, my application has remained under review, and unfortunately I have not received any response so far. I also opened a support ticket but have not received any reply there either. At this point, I would really appreciate any update regarding the status of my enrollment or guidance on what steps I should take next. Thank you in advance for any help.
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Inquiry: iOS capability to read EMV credit/debit cards via NFC (Core NFC) and acceptable alternatives
Hello Apple Developer Technical Support Team, I’m working on an iOS banking/security SDK and we’re trying to match an Android feature that reads payment cards via NFC (EMV). On Android, this is implemented using an NFC scanning screen (e.g., “NfcScanActivity”) that can read EMV data from contactless credit/debit cards. Could you please clarify the current iOS capabilities and App Store policy around this? On iOS, is it currently possible for a third-party App Store app to read contactless credit/debit cards using Core NFC (i.e., accessing EMV application data/AIDs from payment cards)? If this is possible, what are the supported APIs/frameworks and any entitlement requirements (if applicable)? If this is not possible for App Store apps, could you recommend the closest acceptable alternatives for achieving a similar user outcome? For example: Using Apple Pay / PassKit flows for payment-related experiences Card scanning alternatives (camera-based OCR) for capturing card details (if all
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Bluetooth audio packet alignment
We’re evaluating a Bluetooth device that supports Hands Free Profile (HFP) as the “Hands-Free Unit”. You can think of this as a Bluetooth telephone headset. This device interacts with our iOS application. We observed the following. The iPhone 17 HFP Wide-Band Speech (WBS) mSBC decoder requires the WBS packet (H2 header + mSBC frame) to be sent aligned. Aligned meaning, the H2 header must be first in every packet. The WBS packet cannot span multiple eSCO packets or else the iPhone will discard the audio. This is a different implementation than the iPad (iPad Pro 11-inch M4) , presumably due to Apple’s new N1 chip. In other words, we’ve identified that older iPhones and iPads do not require this alignment. They have implemented a stateful parser/decoder of the HFP WBS audio. A quick picture to help illustrate. The iPhone 17 requires: | Frame | Frame | Frame | Frame | However, a Bluetooth implementation we are evaluating does: | me Fra | me Fra | me Fra | me Fra | Does Apple intend to keep this implemen
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3
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141
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3w
Reply to Crash while presenting a media picker for Music
Thanks so much for the post. The crash you are experiencing: remoteViewController cannot be nil... We likely got a nil remoteViewController? Even though the error says Music is crashing, it almost always means is your app allow to access the Music app's UI. The app is requires to explicitly declare that app needs access to the user's Apple Music / Media Library. If you don't include this key, the system will instantly kill the process trying to access it, resulting in the exact crash log you posted I think, have not see it forever, so I’m digging into my small brain. Do you have in your info.plist the NSAppleMusicUsageDescription. https://developer.apple.com/documentation/bundleresources/information-property-list/nsapplemusicusagedescription Are you testing in the simulator? The iOS Simulator does not have the Apple Music app installed. I believe that could cause the issue? You must test MPMediaPickerController on a physical iOS device. If you are testing on a physical device and the user ha
Topic: Media Technologies SubTopic: Audio Tags:
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SwiftUI Instruments tool error: "Time Profiler: Time Profiler does not support the iOS platform"
I am trying to run the SwiftUI instruments tool for an iOS app and every time I run it, it either switches from giving me the Time Profiler: Time Profiler does not support the iOS platform error, or I end up with no data at all; however, when I run just the Time Profiler by itself it works fine. I am running this on a physical device
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Reply to SwiftUI Instruments tool error: "Time Profiler: Time Profiler does not support the iOS platform"
Hi there! That is certainly not expected – could you please file a feedback with us, including model, OS version and sysdiagnose from your iOS device? Thanks, Kacper
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Reply to ppq.apple.com returning 502 Bad Gateway - Unable to verify developer apps on device
Well, that was exciting |-: [quote='879472022, simonsruggi, /thread/818403?answerId=879472022#879472022, /profile/simonsruggi'] It looks like Apple fixed the issue. [/quote] Yep. I can’t really go into details here, other than to say that: ppq.apple.com is a service on the critical path for the trusted execution of code in some situations [1]. It was having problems. Those are now fixed. I don’t have time to read through all 10 pages of posts on this thread. So, if there’s something you want to draw my attention to here, I recommend that you start a new thread with the details. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com [1] There might be more info about it on the enterprise support side of things, but the only developer-focused reference I could find for it was in an old Xcode help page: Manually trust a developer on iOS.
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3w
Mac Assigning NSManagedObject to NSPersistentStore
Hello, I have a iOS app I was looking at porting to Mac. I'm having an issue with both the Mac (Designed for iPad) and Mac Catalyst Destinations. I can't test Mac due to too many build issues. I'm trying to assign a new NSManagedObject into a NSPersistentStore. let object = MyObject(context: context) context.assign(object, to: nsPersistentStore) This works fine for iOS/iOS Simulator/iPhone/iPad. But on the Mac it's crashing with FAULT: NSInvalidArgumentException: Can't assign an object to a store that does not contain the object's entity.; { Thread 1: Can't assign an object to a store that does not contain the object's entity.
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264
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TestFlight install fails with “The requested app is not available or doesn’t exist” after successful upload (Flutter app)
Hello, I’m facing an issue installing my app from TestFlight on a physical iPhone device. App & Environment App: Desi Charades Framework: Flutter Distribution: TestFlight Build status: Upload completed Device: iPhone 7+ iOS version: 15.6 Tester type: Internal Apple Developer Program: Paid account Issue Description After uploading a build successfully to App Store Connect and adding it to TestFlight, the app appears in TestFlight with the Install button. However, when I tap Install, I receive the following error on the device: “Could not install Desi Charades App. The requested app is not available or doesn’t exist.” The build is visible in TestFlight, but installation fails immediately. Upload Warnings During archive upload, App Store Connect shows the following warnings: Upload Symbols Failed The archive did not include a dSYM for: ffmpegkit.framework libavcodec.framework libavdevice.framework The app uses ffmpeg-kit (Flutter plugin), which ships precompiled frameworks. Steps Already Checked Bui
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1
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249
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3w
Reply to App group broken on Sequoia
I’m not sure what’s going wrong here but I have a couple of diagnostics tests for you to run. Both require you to get your file provider started. Once you have that: Use launchctl procinfo to check whether the process has the entitlements validated flag set. App Groups: macOS vs iOS: Working Towards Harmony has an explanation of how to do this. Use codesign to check the entitlements of the running process: % codesign -d --entitlements - PID where PID is the process ID. What do you see? Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com
Topic: Code Signing SubTopic: Entitlements Tags:
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Auto-renewable subscriptions stuck in "Waiting for Review" causing StoreKit products unavailable during App Review
Hi Apple Developer Forums, I am experiencing a repeated issue with auto-renewable subscriptions during App Review for my iOS app. The app uses RevenueCat for subscription management. The subscription products exist in App Store Connect and are correctly configured, but they remain in Waiting for Review. During App Review, the reviewer attempts to access the subscription paywall and receives an error stating that subscriptions are unavailable. This appears to happen because StoreKit cannot fetch the products while they are still waiting for review. This creates a loop: Subscriptions exist in App Store Connect and are in Waiting for Review App Review installs the app StoreKit cannot return the subscription products yet RevenueCat returns an offerings_fetch_failed error The reviewer sees subscriptions unavailable The app is rejected before the subscriptions are approved We have thoroughly verified the configuration: • Subscription group exists • All products are inside the group • Product IDs match exac
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6
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169
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3w
Reply to XCTest Bundle cannot access local network.
[quote='879236022, ADietz, /thread/817792?answerId=879236022#879236022, /profile/ADietz'] each needs some level of code modification of the app under test? [/quote] No, and yes. The first approach doesn’t require you to modify the app under test because the actual local networking ends up being done by your Mac. However, it’s a lot trickier to set up because it requires you to bring up a non-local server. The second approach is easier to set up but it does require support within the app under test. Hmmm, and that suggests a third approach, which is a variant of the second one but with the proxy running in a completely different app on the test device. For this to work you’d have to ensure that this proxy app runs indefinitely in the background. That’s tricky to do in production — see iOS Background Execution Limits — but you can probably make it work in this just-for-testing scenario. So, something like this: Create an ‘audio streaming’ app that continuously plays silent audio and implements the sort
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Views
Activity
3w
Latest Beta Version Breaks Xcode Testing Builds on Physical devices.
This is a grave issue I am facing while testing my apps on my personal device. This is the error I seem to be getting: The application could not be launched because the Developer App Certificate is not trusted. And on the phone side, this is the message: Unable to Verify App. An internet connection is required to verify the trust of the developer Apple Development... Before I receive any recommendations, such as deleting Xcode or restarting my device, I would like to clarify that I have already taken all necessary precautions. The application I was testing appeared to function correctly in the morning a few hours prior to the update. However, after upgrading to the latest beta builds, iOS 26.4 beta and the latest macOS beta, this issue has become a recurring problem. I would greatly appreciate your assistance in resolving this matter, as it is of utmost importance to me.
Replies
2
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0
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112
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3w
Unable to test my apps, crashing with provisioning profile validation
Since around September (iOS 26 release), i'm unable to test my app normally. It says internet connection is required to verify [my certificate id], or just crashing. All terms and conditions accepted, everything is valid, certificates are OK. Reinstallation via xcode does not help. Removal of provisioning profile, generating new does not help. Revoking of certificate and generating new does for around week, then it happens again, but do i need to do it every week now? In logs i see the following: default amfid validation failed because of missing trust and/or authorization (0xe8008026) error amfid not valid: 0xe8008026: The provisioning profile requires online authorization. error amfid Unexpected MISError (0xe8008026): The provisioning profile requires online authorization. default +0300 amfid /private/var/containers/Bundle/Application/5B8E560E-75B2-46EF-8606-02072D99E9CF//Frameworks/oss.dylib not valid: Error Domain=AppleMobileFileIntegrityError Code=-400 An unknown error was encountered UserInfo={
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2
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326
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3w
"Unable to verify app" cannot verify trust of developer
I've seen a couple posts on reddit today but wanted to call out here because I think it may be a more widespread issue - I keep getting an error trying to open my iOS app saying Unable to verify app - An internet connection is required to verify trust of the developer.... I have never gotten this issue before and did not change anything in my build settings from my last successful build of the app to now. The directions it gives me are to go to Settings > General > VPN and Device Management and trust my developer certificate from there, but that doesn't work either. The first time I tried this, the developer certificate wasn't there at all, then I looked at Reddit and saw people recommending to download the developer certificate to solve the issue, but doing this did not fix the error either. Just looking to see if anyone else has encountered this or what the fix might be.
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3
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0
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148
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3w
No Response from Support – Submitted February 15
Hello everyone, I’m posting here to see if someone from the Apple team or the community could help or provide guidance regarding my Apple Developer Program enrollment. My name is Bruno, and I represent 2B Digital LLC. I submitted my enrollment on February 15, under Application ID: 946JTL58KD, with the intention of developing and distributing iOS applications. Since then, my application has remained under review, and unfortunately I have not received any response so far. I also opened a support ticket but have not received any reply there either. At this point, I would really appreciate any update regarding the status of my enrollment or guidance on what steps I should take next. Thank you in advance for any help.
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1
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73
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Inquiry: iOS capability to read EMV credit/debit cards via NFC (Core NFC) and acceptable alternatives
Hello Apple Developer Technical Support Team, I’m working on an iOS banking/security SDK and we’re trying to match an Android feature that reads payment cards via NFC (EMV). On Android, this is implemented using an NFC scanning screen (e.g., “NfcScanActivity”) that can read EMV data from contactless credit/debit cards. Could you please clarify the current iOS capabilities and App Store policy around this? On iOS, is it currently possible for a third-party App Store app to read contactless credit/debit cards using Core NFC (i.e., accessing EMV application data/AIDs from payment cards)? If this is possible, what are the supported APIs/frameworks and any entitlement requirements (if applicable)? If this is not possible for App Store apps, could you recommend the closest acceptable alternatives for achieving a similar user outcome? For example: Using Apple Pay / PassKit flows for payment-related experiences Card scanning alternatives (camera-based OCR) for capturing card details (if all
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1
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98
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