This Lie Detector (Polygraph) machine app will help you know whether your friend is telling you the truth or not!
✓ Ask a YES/NO question
✓ Tap the left side of the start button to generate a "lie"
✓ Tap the right side of the start button to generate a "truth"
Tags: lie detector , lie detector machine , truth detector machine , truth detector , lie detector machines , lie detection machine images
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