You need palera1n, the executable, to run the exploit on your device connected over USB. It is semi-untethered, so you need to run it on every boot, if you want

You need palera1n, the executable, to run the exploit on your device connected over USB. It is semi-untethered, so you need to run it on every boot, if you want your jailbroken environment. Otherwise it will boot into plain iOS.