Untrusted Developer Your device management settings do not allow using apps from developer "Apple Development: xxxxx xxxx (Xxxxxxxxxx)" on this iPhone. You can allow using these apps in Settings. I am running Xcode v13.0 beta and just updated my phone to iOS15 and the app I had running on v14.6 now gives this error but there is no setting visible in settings. I followed some suggestion to delete all profiles for the device in Xcode and delete the app and rebuild it but it didn't help.