Explore the intersection of business and app development. Discuss topics like device management, education, and resources for aspiring app developers.

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Geolocation Manager without function?
Hello, I write my bachelor-thesis about geolocation data on an iPhone. I write a small app to get the actual coordinates and saved into a sqlite database. so far so far. Now I have a GPS-generator from R&S to simulate gps-data and satellites. I can simulate 6 satellites parallel to my "fake" geolocation. I write the app also on an Android -smartphone, this Android can display the Satellites-ID and the "fake" geolocation..thats fine for my thesis. But my iPhone would not display anything I this setup? During outside the app would be deliver the actual coordinate, but with the signal.genarator I can't get coordinates. I try GPS, Glosnass, Galileo and Beidoo but nothing happens on my iPhone 12mini. The IOS is 18.1 and I use the core Location api. Has anybody some ideas for me and my thesis?
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387
Feb ’25
Question on using Apple TTS voice (commercial use and license)
Apple provides a function to create TTS voice as a file in TTS. (AVSpeechUtterance/AVSpeechSynthesizer) Or, if the user records the video of TTS playback and uses that video I wonder what the scope of use is if I use this TTS voice to make YouTube, TikTok, or commercial videos. Is it impossible to use it commercially at all? Can I use it commercially with the source indicated? Can I use it commercially without a separate source indication? Is there a difference in commercial use license between Siri voices and regular TTS voices?
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363
Mar ’25
in-house app cannot be authorized with iOS 18 new authorization procedure
short version question: why some users after deleting and downloading back my in-house app, cannot start the new process for approving developer, but instead it tries to start and then crashes immediately? long question version I am maintaining an in-house distributed enterprise app. due to update in iOS 18 update here users need to trust the developer via a new procedure that involves restarting device and inserting the phone code. after thousands (more or less 30.000) of users with no issue at all, some of them has this problem, the old (expired)trust seems to be persistent and never updated. Standard events a user deletes the app via settings > general > VPN & device management or via classic persistent touch procedure checks no other presence of the app is on the device via spotlight. since it is the only app with "MyDeveloperName" on the phone, if users goe back to VPN & device management screen, no app or developer will be present. user downloads new version of the app. If taps directly on the icon there is a system alert with says the developer must be trusted. a this point in settings > general > VPN & device management you can find a line with developer name, tapping on it we find a screen where user finds a white button with BLUE message "authorize MyDeveloperName" and follows procedure. My issue is that some users get following different behavior, and I do not understand why: ❌ tapping on downloaded app icon: no alert, but app tries to start then crashes. ❌ going in VPN & device management screen there is only RED write button "delete app" in both paths, working and not working, the app results "verified" in VPN & device management screen (Apple says old authorizations are preserved.)
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1.5k
Mar ’25
IOS 18.3.2(22D82) Enterprise signature installation package crashes
Recently, we have encountered some users who have been unable to open the enterprise signature application after upgrading to version 18.3.2, without an IPS file. Through system logs, we found that signature verification has occurred SecKeyVerifySignature failed: Error Domain=NSOSStatusErrorDomain Code=-50 "rsa_pub_crypt failed, ccerr=-7" UserInfo={numberOfErrorsDeep=0, NSDescription=rsa_pub_crypt failed, ccerr=-7} Waiting for the information, I will provide the obtained system logs below. The application package name that crashed is com. mobile. moonew
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167
Mar ’25
Enterprise App Crashes on Launch on iOS 18.3.2
We have an office application used internally within our enterprise. The Provisioning Profiles (PP) for the app were about to expire, so we updated the PP and released a new version. However, we've encountered an issue where some users did not update their phones in time. After the app expired, they found it unusable and downloaded the new version, but the newly downloaded app also crashes on launch. Restarting the phone does not resolve the issue, and this primarily occurs on iOS 18.3.2. What could be the cause of this problem, and how should we address it?
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Mar ’25
Enterprise App Crashes on Launch on iOS 18.3.2
We have an office application used internally within our enterprise. The Provisioning Profiles (PP) for the app were about to expire, so we updated the PP and released a new version. However, we've encountered an issue where some users did not update their phones in time. After the app expired, they found it unusable and downloaded the new version, but the newly downloaded app also crashes on launch. Restarting the phone does not resolve the issue, and this primarily occurs on iOS 18.3.2. What could be the cause of this problem, and how should we address it?
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167
Mar ’25
Unable to Generate MDM CSR for Apple Push Certificates Portal
Hi I am trying to develop Apple MDM solution as a vendor. I got the Vendor certificate from apple developer portal. When I was trying to generate the csr and upload to Portal (https://identity.apple.com/pushcert/) It says Invalid Certificate Signing Request. I had also tried to follow documentation (https://developer.apple.com/documentation/devicemanagement/setting-up-push-notifications-for-your-mdm-customers) but still the same error. Can anyone please guide how to generate the csr.
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54
Mar ’25
Captive Portal API (RFC-8908)
Our organization is deploying passwordless authentication. Instead of using a password, employees must use the Microsoft Authenticator app to complete the login process. Unfortunately, employees with passwordless authentication can't complete the login on the Wi-Fi Captive portal with SAML authentication. The reason is that when an employee switches to the Microsoft Authenticator app, the Apple CNA (Apple Network Captive Assistant) disappears. As a result, the authentication process breaks. According to the https://developer.apple.com/news/?id=q78sq5rv source, iOS 14+ devices support the RFC-8908 standard. Unfortunately, we couldn't find a reliable source on how this feature works on iOS devices. The question is: Is it possible to automatically forward Wi-Fi clients to the SAML authentication portal in the default browser app (for example, Safari) after connecting an employee to Wi-Fi?
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66
Mar ’25
Tax forms help for Indian companies
Hi Team, After agreeing the Paid In-app purchase agreements, i have been asked to fill the tax forms of US Certificate of foreign status of beneficial owner and US substitute form W-8BEN-E. Being an Indian Ed-tech company, we would like to know how should we approach this. Any help or support page or video on this can make our life easier. Thanks Team ACEplus.
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Mar ’25
After the Provisioning Profile expires, application cannot be used after reinstallation
My company signed the application with enterprise certificate, the Provisioning Profile expired on March 20, 2025. Some iPhones didn't update the application before the expiration. We have update the Provisioning Profile and repackaged application. However, these iPhones still can't use the application after reinstalling the new ipa. After opening the application, the screen is blank and then flashes back without any error prompt. Restarting iPhone didn't help.
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78
Mar ’25
IOS 18.3.2(22D82) Enterprise signature installation package crashes
Recently, we have encountered some users who have been unable to open the enterprise signature application after upgrading to version 18.3.2, without an IPS file. Through system logs, we found that signature verification has occurred SecKeyVerifySignature failed: Error Domain=NSOSStatusErrorDomain Code=-50 "rsa_pub_crypt failed, ccerr=-7" UserInfo={numberOfErrorsDeep=0, NSDescription=rsa_pub_crypt failed, ccerr=-7} Waiting for the information, I will provide the obtained system logs below. The application package name that crashed is com. mobile. moa aa.txt new
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173
Mar ’25
Force-renew Enterprise Provisioning Profiles of iOS Distribution Managed Certs?
Last year I used the iOS Distribution Managed Certificate (Enterprise Program) to sign an App and to distribute it internally. The Cert is still valid until May 2026. But its associated Provisiong Profile (which is not visible in the Apple Portal, but within Xcode when you export your archive) expired last week. Until then it was impossible for me to somehow force renew the profile and that lead to the fact that my app was not usable for a day, because the renewal was done after the expiration of the old one. Whats the whole point of the managed signing if can't influence the provisioning update. To be clear: I don't speak about the certificate - just about the profile. Or am I using it wrong?
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103
Apr ’25
app crashes, but it works normally when another app is installed through MDM.
We install two in-house apps. The first app is installed using the standard in-house method, while the second app is installed via MDM commands. Both apps share the same Team ID and use Keychain sharing to exchange data. However, when the MDM profile is deleted and the second app is removed, the first app intermittently encounters issues and does not function properly. However, when the MDM mobileconfig is reinstalled and the second app is installed again, the first app that was not functioning starts working properly. We have thoroughly reviewed the logs but have not been able to find a solution. Your assistance would be greatly appreciated. We have extracted and attached the device logs that were generated during the error occurrence. log.log
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141
Apr ’25
Entering the Tax form for India
We intend to sell in india markets. In india our tax compliance is GSTIN which is also highlighted in your "Provide tax information for alternative payment options" section. We will not be making any sale outside India and hence are not liable for any tax compliance or withholding of tax outside india. Please guide us on how we should fill the tax forms.
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57
Apr ’25
iOS 18.3.2 Enterprise App Crashes on Launch - SecKeyVerifySignature Failed
We are encountering a critical issue where an enterprise-signed iOS app crashes immediately after installation on devices running iOS 18.3.2 (22D82). The same app runs fine on other iOS versions (including iOS 18.3.1 and earlier). Issue Summary: After upgrading to iOS 18.3.2, users are unable to launch our enterprise app (Bundle ID: com.kt.MobileDRM). The app installs successfully but crashes immediately upon launch. This issue occurs only on iOS 18.3.2, not on earlier versions or other iPadOS/iOS devices. System Log Snippet: SecKeyVerifySignature failed: Error Domain=NSOSStatusErrorDomain Code=-50 "rsa_pub_crypt failed, ccerr=-7" UserInfo={numberOfErrorsDeep=0, NSDescription=rsa_pub_crypt failed, ccerr=-7} Additional Info: The app is signed with a valid enterprise certificate. No changes were made to the app binary or signing configuration before this issue started. We are not using an IPS file. A similar app (different bundle ID) shows the same behavior on iPadOS 18.3.2 but runs fine on other versions. Questions: Has there been a change in iOS 18.3.2 that affects enterprise certificate validation? Does ccerr=-7 indicate a cryptographic change or stricter signature verification? Are there updated requirements or provisioning profile constraints we should be aware of for iOS 18.3.2? We would greatly appreciate any insights or official guidance regarding this issue. Thank you!
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Apr ’25
InTune Mobile App Protection - How to Exempt Native Apps???
I originally posted here & was referred to post in developer forumsn. https://discussions.apple.com/thread/256036430?login=true&sortBy=rank&answerId=261319559022 There has to be someone else out here that's gone through this. I've tried everything I can think of, forums, reddit, Microsoft documentation.... just can't find any clear cut method of doing this. I'm working on an InTune Mobile App Protection Policy. I know there are going to be some VPs out there asking why they can't use native iOS Apps, especially Apple Calendar, Contacts & Mail. I have not been able to get anywhere, I always end up with this error. Things I've tried: Allow sync of native apps with work account Putting in app exemptions (But I don't truly know if I know if I have the right values for this and there's no simple way of getting it from what I've seen. Having to download app to PC, finding config files, finding specific values.... that people say are hit or miss). Allow data transfer of ALL Apps What am I missing here? I'm pretty much giving up and just going to say sorry, you can't use Native apps.. Period! Anyone have any experience with this, especially for Mail, Calendar & Contacts? Thank you for anyone that can offer advice on this.
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Apr ’25