If you are locked out of your device, it is safer to use official channels or verified banking/investment apps that share the "iFAST" name but are unrelated to the unlocking tool:
The only official way to remove an Activation Lock is through Apple Support with proof of purchase. ifast 22 download
iFast-22 is often promoted through third-party tutorials as a "fully unlock" solution for iCloud Activation Locks and macOS locks. It claims to: If you are locked out of your device,