If you use a free signing service, Apple will eventually revoke the enterprise certificate. When this happens, the modded app will crash instantly upon opening. You lose all app data unless it supports cloud saving.
| Dependency | Purpose |
|------------|---------|
| insert_dylib | Inject dylib into Mach-O binary |
| ldid or codesign | Re-sign binaries |
| plistlib (Python) | Modify Info.plist |
| zip / unzip | Extract and repack IPA |
| optool (optional) | Advanced binary patching |
| libimobiledevice | Install IPA to device | ipa mod
Installation (macOS example):
brew install ldid optool libimobiledevice
pip install py plistlib
Many free games and utilities make money through banner or video ads. A modded IPA can remove the ad framework entirely or prevent the ad servers from loading. If you use a free signing service, Apple