At its core, iOS won't run any app unless it has a valid digital signature from Apple or a trusted developer. AmS1gn acts as a middleman, providing the necessary to "sign" your custom apps, making them appear legitimate to your device’s operating system. Key Features and Tools
If you were to extract an ams1gn.ipa from an iOS 16.5 IPSW, what would you find? ams1gn ipa