Fingerprint Lock has a modern design that reacts with either haptic, as well as acoustic feedback and the best, it’s free! Featurerequests und bugreports are handled with high priority…
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Of course, the screen of your Android smartphones can not read your fingerprints, it simply responds to the touch. The trick is that you can change with a simple click on the title of the app (fingerprint lock) between "allow access" and "deny". This naturally dos’t know your friends and so the will think you've built a real biometric fingerprint reader in the touch screen of your mobile. This is not a security application or lockscreen!
Note that point in your rating, Fingerprint Lock is explezit marked as fun app! Currently it is technically not possible to use the touchscreen as a fingerprint scanner.