Do you want to prank your friends into thinking that you android phone can work like lie scanner? It's not hard. Just install this application and you can start interrogating your friends on parties. But keep in mind that it's best used with some funny questions. Use the detector to your advantage - you can have some influence on the output. Just tap in on the left side of the screen to get the 'lie' related answer and tap it on the right side to get the 'truth' answer. At least to some degree.