Lie Detector Test: Truth Prank

Catch them red-handed! Put a finger on the scanner, ask the juicy question, and watch the TRUTH or LIE verdict drop. Secretly rig results in Customize Mode. Prank away!

Is your friend telling the TRUTH… or a total LIE? Place a finger on the scanner, ask any question, and let the Lie Detector Test deliver the verdict — the ultimate party prank!

Your phone becomes a hilarious polygraph simulator: an animated fingerprint scanner, a racing waveform, radar rings, a heartbeat countdown, dramatic scanning sounds and haptics… and then the glowing verdict drops: TRUTH or LIE. Their face in that moment? Priceless.

YOU SECRETLY CONTROL THE VERDICT • Customize Mode: pre-set the next results in any order before you hand the phone over • Random Mode: a genuine 50/50 for real suspense • They'll never know it was rigged — that's the prank

THE ULTIMATE PARTY GAME • Loyalty tests for couples and best friends • Sleepovers, game nights, road trips, April Fools and family gatherings • Truth-or-dare nights: ask the juicy questions — "Do you have a crush?" "Who ate my snack?" • Film the reveal — the reactions are made for TikTok, Reels and Shorts

FEELS SCARY REAL • Realistic fingerprint scanner with a suspenseful press-and-hold • Animated polygraph waveform, radar rings and countdown • Immersive sound effects and haptic vibrations • A dramatic, glowing TRUTH or LIE reveal

WHY YOU'LL LOVE IT • Prank in seconds — no setup, no sign-up • Slick sci-fi neon design • Endless laughs, every single time

GO PRO Remove all ads for a smooth, uninterrupted prank. Pro is an auto-renewable subscription; payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel anytime in your Apple Account settings. The weekly plan starts with a 7-day free trial that converts to a paid subscription unless cancelled.

DISCLAIMER Lie Detector Test is a prank and entertainment app for fun only. It does NOT detect real lies or truth and does not read fingerprints or any biometric data — every result is random or pre-set by you, purely for entertainment. Always let your friends in on the joke!

Privacy Policy: https://thirtythreeapps.com/ios-lie-detector-test-privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Download Lie Detector Test now — scan a finger, reveal the verdict, and find out who's REALLY lying!