Nowadays, anyone can install third-party apps and emulators without having to use the date trick to bypass Apple’s restrictions. Thanks to the help of Cydia Impactor, it makes the whole thing less complicated. The only problem with self-signed certificates is they only last for seven (7) days. After expiration, your sideloaded apps will crash upon opening. To get them to work again, you will need to plug your iOS device into a computer and sign them again using the same method.

That’s why it’s always useful to have AppSync because you do not need to perform such action. When AppSync Unified is installed, it “patches installd” so that the certificate don’t expire and you can “download fakesigned IPAs” directly from your iPhone or iPad (via Safari).

If there is any developer out there who want to test out their apps before submitting it to the App Store, AppSync can aid your development by allowing installation of self-signed iOS apps.

Without further ado, here is how to install the AppSync tweak on your jailbroken iOS 9.x.x

How to Install AppSync on iPhone and iPad

  1. Open Cydia > Sources
  2. Tap Edit and choose Add
  3. Enter the following URL:
  4. When done adding Karen’s repo, refresh Cydia
  5. You can either go straight to the new repo or using the Search feature. Look for AppSync Unified and install it


As soon as you select Respring after the downloading process, AppSync will start working right away. There is no preference page for you to configure.

It’s important to know that AppSync Unified was released to serve several purposes.

  • Remove the struggle of using Cydia Impactor or Xcode to sideload your own apps
  • Assists in application development for iOS developers

With that being said, you should never use this tweak for iOS piracy. The developer of AppSync Unified, Karen (@angelXwind on Twitter), has put together this post on the r/Jailbreak subreddit to tell you more about this problem.

  • Geek

    Cydia for iOS 9.2
    Thus no app sync

  • Jarvis Corby

    I was trying to install Clash of Clans game hack with vShare and installed AppSync repo, but v share gives me error, please help me