Real Fingerprint Scanner claims that it can detect your mood by judging your "heart rate, body temperature, and sweat." To use the app, hold your finger over the fingerprint as it "compiles" information. After it is done analyzing, your mood appears at the top of the screen. The design of the app seems to be based off of cheesy spy technology featured in old James Bond films. It's totally false as any body part, such as a knee, placed on the scanner will give results.