IQ Scanner Simulator is a free prank app developed by RedStaff Apps for Android devices. As the name suggests, the app pretends to measure your IQ using a mock fingerprint scan. Simply place your thumb on the scanner, wait for a moment, and the app will display a random IQ number.

It is important to note that IQ Scanner Simulator is not a real IQ test and the results are completely random. The app is designed for entertainment purposes or for playing pranks on your friends. It comes with a built-in custom response editor that allows you to make the app respond with any IQ reading that you want. You can make the app give you a high IQ, then test your friend and have it give them a low one! It's all in good fun and a great way to pass the time.