DNA Prank Test by Fingerprint is a free Android app developed by DD Bros. that allows you to play a joke on your friends or relatives by performing a DNA paternity test. The app uses fingerprint scanning technology to determine your relationship with another person.

To use the app, simply scan your finger and then the finger of another person. The app will then display a result that shows whether you are related or not. The left gears will indicate that you are relatives, while the right gears will display that you have no family ties.

It's important to note that DNA Prank Test by Fingerprint is a joke application and the results received are not reliable. It's a fun way to prank your friends and family, but it should not be taken seriously. Overall, this app is a great way to have a laugh with your loved ones.