A decrypted IPA file. You cannot inject dylibs into encrypted IPAs straight from the App Store. The Dylib: The compiled binary you wish to inject.
If your dylib relies on other frameworks (like CydiaSubstrate or RocketBootstrap), you must include those in the app bundle and update their paths as well. 5. Resign the IPA Inject Dylib Into Ipa
Hooking methods to analyze how an app handles data. A decrypted IPA file