Lie Detector Test vs Truth and Lie Detector
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lie Detector Test
Simulate a lie detector test using your fingerprint. Fool your friends with this fun prank app that analyzes a "scan" of their finger to determine if they are telling the truth or lying. Perfect for lighthearted entertainment.
- Fingerprint scanner simulation
- Prank mode to fool friends
- Fake lie/truth results
- Laser Xray effect
- Random result generation
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Start the scan your fingerprint and say something to see if it is true or a lie. Place your finger on the scanner area and allow scanner begin. Laser Xray will go throught your finger. Use the prank features to fool everyone with this fake lie detector test. Instruction for prank mode: Start by touching and holding friend's finger down on the scan area. First time you see a random result. On result screen tap on the left side of button for “False", and on the right for "True". Pressing the restart button will give a random result. Disclaimer: This application is only a prank trick for fun. it's not a real polygraph lie detector.
Truth and Lie Detector
This entertainment app simulates a lie detector test to prank your friends. It offers a prank mode to hide instructions and create humorous situations. Remember, it's for fun and doesn't provide actual lie detection.
- Simulated lie detector test
- Prank mode
- Humorous entertainment
- Fake scanner functionality
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Make your friends laugh by saying funny things and finding out if they are true or false! Activate the prank mode to hide the instructions, and fool everyone with this fake lie detector test. Disclaimer: This lie detector app is intended for entertainment purposes only and does not provide real truth detector functionality. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Lie Detector Test at 3.4 against Truth and Lie Detector's 2.8. Lie Detector Test also leads on in-app purchases (none vs 1) and ratings volume (1.6K vs 49). On price, review sentiment, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Truth and Lie Detector sells 1 one-off in-app purchase. Lie Detector Test asks for nothing beyond the download.
Lie Detector Test holds the better App Store score, 3.4 against 2.8. That said, the two scores are not equally well evidenced: Lie Detector Test has 1.6K ratings behind it against 49, so its average is the more settled of the two. Written reviews point the same way: 36% of Lie Detector Test's written reviews are positive against 30% of Truth and Lie Detector's.
Lie Detector Test ships an update every 42 months, Truth and Lie Detector every 35 months. Both last shipped on November 2, 2026.
| Parameter | Lie Detector Test | Truth and Lie Detector |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (1.6K ratings) — better | 2.8 (49 ratings) |
| Positive reviews | 36.5% of reviews — better | 30.0% of reviews |
| Number of ratings | 1.6K — better | 49 |
| Update frequency | Every 42 months | Every 35 months — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 22 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Denis Batishchev | Abdullah Saleem |
Customer experience
Lie Detector Test
Truth and Lie Detector
Bugs and requests
Lie Detector Test
Reported bugs
2 issues- Incorrectly identifies true statements as lies
- Freezes after each use
Requested features
2 requests- More realistic lie detection
- Option to change language
Truth and Lie Detector
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Lie Detector Test
No in-app purchases
Truth and Lie Detector
- Pro Version$3.99
Questions
Is Lie Detector Test free?
Is Truth and Lie Detector free?
Which has better reviews, Lie Detector Test or Truth and Lie Detector?
Do Lie Detector Test or Truth and Lie Detector have ads?
Which is updated more often, Lie Detector Test or Truth and Lie Detector?
Other comparisons
