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.
: Uses built-in certificates and "revoke protection" DNS to keep apps running for extended periods without a jailbreak. Permanently signs IPAs on jailbroken iDevices 1...
: It hooks into iOS signature validation functions (like MISValidateSignatureAndCopyInfo ) and essentially tells the system that an invalid or missing signature is valid. AppSync Unified is the essential tweak for any