# Lie Detector Test vs Lie Detector

The clearest difference is in-app purchases: Lie Detector Test at none against Lie Detector's 1. Lie Detector Test also leads on iOS requirement (12.0 vs 15.6). Lie Detector's advantage is update cadence (every 6 days vs every 42 months). On price, ads and device support there is nothing between them.

Both are free to download. Lie Detector sells 1 one-off in-app purchase. Lie Detector Test asks for nothing beyond the download.

Lie Detector Test ships an update every 42 months, Lie Detector every 6 days. The most recent releases landed on November 6, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Lie Detector Test | Lie Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (1.6K ratings)](https://appshunter.io/ios/app/lie-detector-test-simulator/id1219798065/reviews)** | — |
| Number of ratings | **1.6K** | — |
| Positive reviews | 36.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 42 months | **Every 6 days** |
| Monetization | Ad-supported | — |
| Size | 22 MB | 63 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Denis Batishchev](https://appshunter.io/developer/1179896396) | [AMARDEEP DHILLON](https://appshunter.io/developer/999752727) |

## 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


### Lie Detector

[App page](https://appshunter.io/ios/app/lie-detector-face-scanner/id6762190053)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $2.99 | one-time |


## Frequently asked questions

### Is Lie Detector Test free?

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

### Is Lie Detector free?

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

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

Both Lie Detector Test and Lie Detector show ads.

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

Lie Detector Test ships an update every 42 months, and Lie Detector every 6 days. Most recently, Lie Detector Test was updated on November 6, 2026 and Lie Detector on October 19, 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.*