AppSync Unified

From iPhone Development Wiki

AppSync Unified, written by Karen/あけみ is a tweak that allows users to freely install ad-hoc signed, fakesigned, or unsigned IPA app packages on their iOS devices that iOS would otherwise consider invalid.

Some popular use cases include:

  • Installing freely-distributed apps that are unavailable from the App Store without having to re-sign the apps in question every 7 days (if the user does not have a subscription to the Apple Developer Program)
  • Assisting in the development of iOS applications with Xcode
  • Cloning or downgrading already-installed apps

It can be downloaded from

Source code is available at