I know that Android apps are packaged as *.apk files, but I have no idea in which way an iOS/iPhone app is stored?
Assuming that iOS apps need to be developed and up- and downloaded to the apple App store I assume that the app is stored as a file. Which format does this file have?
An .ipa file is an iOS application archive file which stores an iOS app. Each .ipa file includes a binary for the ARM architecture and can only be installed on an iOS-device.