Lie Detector prank is a perfect app to make a joke of your friends. This App only pretends to be a real polygraph. It is not a real truth machine! You need to know the answer for the question to make a good prank.
Admob intergrated ( Banner + Interstitial).
Full Documentation.
Download Apk :
https://www.dropbox.com/s/mnthrlgfz1tsmr7/com.sandroid.liedetector_1_www.APKdler.com_.apk?dl=0