Hi, I am currently coding an App using Xcode (Swift). For installing my app on devices I make us of over the air installation (OTAI). When ever I want to test it on my own device and I download & install it there is no problem at all. But when I try to install it on a third IOS device, the error "App Cannot be installed because its integrity could not be verified" appears. In general, I want the App to be installable through OTAI. It will not be listed on the AppStore. When archiving the app on Xcode, I use following options: Ad Hoc Additional Options: ✅ Include manifest for over-the-air-installation My URLs Automatically manage signing and then I just export and upload the IPA on https://installonair.com. Thank you for helping me! :)