: Apps installed this way will crash if your device restarts into a non-jailbroken state. 2. TrollStore & TrollStore Lite

AppSync Unified is the essential tweak for any jailbroken device. It patches the system to allow the installation of "fakesigned" or unsigned IPA files, meaning they will never expire as long as you are in a jailbroken state.

: This acts as a graphical interface (GUI) for AppSync. It allows you to install IPAs directly on the device with advanced entitlements (like push notifications and iCloud access) that standard AppSync installs might lack.

: It hooks into iOS signature validation functions (like MISValidateSignatureAndCopyInfo ) and essentially tells the system that an invalid or missing signature is valid.

While the original exploited a specific CoreTrust bug (limited to iOS 14.0–17.0), TrollStore Lite was designed specifically for jailbroken users to provide a "permasigned" feel on newer versions.