The best truth and lie detector test app. Download now!

Place your fingers on the screen and say something to find out if it is a truth or a lie.

Make your friends and family laugh by saying funny things and finding out if they are true or false!

- Lie detector analyses what you say
- Amazing graphics and sounds
- Realistic computer voice
- Prank mode
- Hours of hilarious fun!

Disclaimer: This lie detector app is intended for entertainment purposes only and does not provide real truth detector functionality.

What’s New

Version 1.3.3

Bug fixes and performance improvements.

Ratings and Reviews

4.4 out of 5
17.1K Ratings

17.1K Ratings

Akiro-Demonica ,

It’s pretty good

Before I rated it every time I said something it was correct, after I rated it one of them was false, which I said I didn’t do this, and it said true. But I actually did do this thing, I did it 4 times, 1 was correct. After that I asked a different question, and another. Both of those were correct. I have no idea if it really works, but it’s sort of creepy that only one question that I asked was false. I asked it more than once, but it was only that question..

Vmeahza ,

This App is Genious

First of all this app does not work how you may think. This app is explicitly a perfect prank app. It sadly doesn’t actually tell you if your lying or not but it does something that’s just as good if used correctly. How you use this app is when it gives the option to “start scanning process” if you press on the right side of the screen it will always say false, and vice versa for left, it will say true. This app is perfect for pranking some friends and just messing around

Anonymous Sci-Fi Fanatic Boy ,

It’s for pranks, people.

90% of these reviews are kids writing really long, unpunctuated paragraphs. This review isn’t that.
This app does not actually detect lies. Anyone who thinks for more than 3 seconds will know that. Maybe it’s random, however some reviews say it depends on which finger you put down first, and some say there’s a pattern, so do some tests yourself.
If true, then you can manipulate this to say whatever you want it to and do some awesome pranks. Have fun!


First Class Media B.V.
199.6 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Danish, Dutch, Finnish, French, German, Greek, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Norwegian Nynorsk, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Vietnamese

Age Rating
In-App Purchases
  1. Remove ads $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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