While iOS cannot run APK files natively, users often use AmS1gn alongside tools like Unzip to rename and sign converted .ipa files.

is a third-party signing service and installer for iOS that allows users to sideload apps—specifically IPA files—directly onto their devices without needing a computer or a jailbreak. While some online tutorials claim it can be used to install Android APK files on an iPhone, it is primarily used as an alternative to official app stores for iOS-compatible software. How to Install and Use Ams1gn on iOS Because Ams1gn is not available on the official Apple App Store

After payment, you must wait 24 to 72 hours for Apple to process your UDID.