# Lie Detector Test vs Truth and Lie Detector

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.

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.

## The numbers

| Metric | Lie Detector Test | Truth and Lie Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (1.6K ratings)](https://appshunter.io/ios/app/lie-detector-test-simulator/id1219798065/reviews)** | [2.8 (49 ratings)](https://appshunter.io/ios/app/truth-and-lie-detector/id1232853783/reviews) |
| Number of ratings | **1.6K** | 49 |
| Positive reviews | **36.5% of reviews** | 30.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 42 months | **Every 35 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 22 MB | 69 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Denis Batishchev](https://appshunter.io/developer/1179896396) | [Abdullah Saleem](https://appshunter.io/developer/1207008098) |

## What reviewers say

### Lie Detector Test

[App page](https://appshunter.io/ios/app/lie-detector-test-simulator/id1219798065)

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.

**Highlights:** Fingerprint scanner simulation, Prank mode to fool friends, Fake lie/truth results, Laser Xray effect, Random result generation

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Fun to prank friends
- 😯 Surprisingly accurate at times
- 🤩 Amazing programming

**What reviewers complain about**

- 🐛 Inconsistent results
- 💩 Completely fake/inaccurate
- 🤬 Too many ads
- 😡 Always says 'true'

**Reported bugs**

- Incorrectly identifies true statements as lies
- Freezes after each use

**Requested features**

- More realistic lie detection
- Option to change language


### Truth and Lie Detector

[App page](https://appshunter.io/ios/app/truth-and-lie-detector/id1232853783)

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.

**Highlights:** Simulated lie detector test, Prank mode, Humorous entertainment, Fake scanner functionality

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $3.99 | one-time |


## Frequently asked questions

### Is Lie Detector Test free?

Lie Detector Test is free to download, with no in-app purchases.

### Is Truth and Lie Detector free?

Truth and Lie Detector is free to download, with in-app purchases available.

### Which has better reviews, Lie Detector Test or Truth and Lie Detector?

Lie Detector Test is rated higher. Lie Detector Test averages 3.4 out of 5 from 1.6K ratings, while Truth and Lie Detector averages 2.8 from 49 ratings.

### Do Lie Detector Test or Truth and Lie Detector have ads?

Both Lie Detector Test and Truth and Lie Detector show ads.

### Which is updated more often, Lie Detector Test or Truth and Lie Detector?

Lie Detector Test ships an update every 42 months, and Truth and Lie Detector every 35 months. Most recently, Lie Detector Test was updated on November 2, 2026 and Truth and Lie Detector on November 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*