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Fingerprint scanner
Ask a friend to press and hold a finger on the simulated scanner while the app performs its pretend analysis.
● Made for playful pranks
Truth or lie?
Truth or lie?
Let the fun begin.
Entertain your friends with a playful lie detector simulator featuring fingerprint, voice and eye scanner prank modes.
Entertainment only · Contains ads · Rated for 3+
Prank modes
Three ways to keep friends guessing
Each mode simulates an analysis and presents a playful TRUE, MAYBE or FALSE result.
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Voice scanner
Let a friend speak into the voice scanner and watch the app simulate checking their answer.
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Eye scanner
Use the simulated eye scanner for another playful way to stage a truth-or-lie moment.
Inside the app
A dramatic prank experience
Official screenshots from the current Google Play listing.
How it works
Set up a prank in seconds
Choose a mode
Pick the fingerprint, voice or eye scanner simulation.
Ask the question
Have your friend interact with the simulated scanner while answering.
Reveal the result
The app displays TRUE, MAYBE or FALSE. The listing also says the top corners can be used to set True or False.
Clear and transparent
A prank—not a real polygraph
The developer explicitly states that the scanners are simulated, results are intended for fun, and the app does not actually determine whether someone is telling the truth.
Rated for 3+Content rating shown on Google Play.
No data collectedDeclared by the developer in the listing’s Data safety section.
Encrypted in transitGoogle Play’s Data safety section notes encryption in transit and possible sharing of device or other IDs.
FAQ
Good to know
Is this a real lie detector?
No. The Google Play listing describes it as a prank simulator for entertainment. It is not a real polygraph and cannot determine truth or lies.
Which scanner modes are included?
The listing describes fingerprint, voice and eye scanner modes.
What results can the app show?
The simulated result can display TRUE, MAYBE or FALSE.
Can I control a prank result?
The listing says pressing the top-left corner sets the system to True, while pressing the top-right corner sets it to False.
Does the app contain ads?
Yes. The current Google Play listing labels the app as containing ads.
Ready for a laugh?
▶ Get it on Google Play