Reveal truths with a "lie detector," purely for fun
Polygraph is a fun and entertaining app that "analyzes" your words for truthfulness with a simple fingertip touch. While it doesn't have actual lie detection capabilities, it's perfect for parties or casual moments with friends. Try it out and see if you can fool it!
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What's new in the latest 1.2.0
Last updated on May 20, 2026
Minor bug fixes and improvements. Install or update to the newest version to check it out!
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