This process will allow you to run third-party apps. You will also be able to do other things that Apple doesn’t want you to be able to do and have more fun on your device.
Jailbreak an iPhone, iPod Touch, or iPad
Get more out of your Apple device!
First, go to greenpois0n.com and download the software for your Mac or Windows computer.
Plug your Apple device into your computer.
Now that you have downloaded the software and plugged in your device you are ready to start jailbreaking.
Next, run the Greenpois0n software, and turn off your device.
Once you have done that click on “Prepare to jailbreak.” Follow all directions on the screen!
Then, click on “Jailbreak,” and wait for your device.
Lastly, make sure that your device has Cydia installed.
If it does then you’re done! If it doesn’t, try again.