Most modern jailbreaks (unc0ver, Odyssey, Dopamine) are —they attack the iOS kernel after the system has booted. These can be packaged into an IPA file, signed with a certificate, and installed over the air.
So, when you see "Checkra1n IPA" online, you are usually looking at one of three things: Checkra1n Ipa
If you've been searching for a "Checkra1n IPA" to jailbreak your iPhone directly on the device, there is one critical fact you need to know: Most modern jailbreaks (unc0ver
: The official Checkra1n team (the Corellium and axi0mX group) has never released a native IPA version of Checkra1n. Why? Because the checkm8 exploit requires direct USB access to the device's DFU (Device Firmware Update) mode. A standard IPA running in userland cannot talk to the USB controller at the hardware level required to trigger the bootrom exploit. signed with a certificate