redsn0w

redsn0w is a utility that will jailbreak your iPhone or iPod Touch, allowing it to run apps that are not approved by Apple. redsn0w can perform an untethered jailbreak of iOS 5.0.1 for all iPhones, iPod Touches, and iPads.

Free Mac OS X Windows Linux

TinyUmbrella

TinyUmbrella saves the "SHSH blobs" of your Apple device (i.e. iPhone, iPod, or iPad), allowing you to bypass Apple's servers and downgrade your firmware through iTunes, whenever you want.

Free Open Source Mac OS X Windows Linux

AptBackup

With AptBackup, you can backup the Cydia apps on your jailbroken iOS device. After you restore your iPhone in iTunes, redownload AptBackup, and it will redownload all of...

Free iPhone

iFaith

iFaith is a program that can save the SHSH blobs of the current version of iOS that's running on your jailbroken iPhone. It will work any version of iOS, whether or not that version is still signed by Apple.

Free Windows

iSHSHit

iSHSHit allows you to backup your SHSH blobs from Apple directly on your iDevice for later downgrading. It automatically uses the Cydia On File service in the...

Free iPhone iPad

xBackup

xBackup is a simple app that will allow you to back up your Cydia sources and installed packages. So when you have to restore your device, you can get all your apps...

Commercial iPhone