# Lie Detector Test vs Lie Detector

The clearest difference is rating: Lie Detector at 4.4 against Lie Detector Test's 3.4. Lie Detector also leads on update cadence (every 7 months vs every 42 months). Lie Detector Test's advantage is in-app purchases (none vs 8) and iOS requirement (12.0 vs 15.6). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Lie Detector sells 8 in-app purchases, starting at $0.99 per 7 days. Lie Detector Test asks for nothing beyond the download.

Lie Detector holds the better App Store score, 4.4 against 3.4. Both are backed by a comparable volume of ratings — 1.6K and 1.2K respectively. Written reviews point the same way: 36% of Lie Detector Test's written reviews are positive against 41% of Lie Detector's.

Lie Detector Test ships an update every 42 months, Lie Detector every 7 months. Both last shipped on September 25, 2026.

## 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) | **[4.4 (1.2K ratings)](https://appshunter.io/ios/app/lie-detector-true-false-test/id1642503184/reviews)** |
| Number of ratings | **1.6K** | 1.2K |
| Positive reviews | 36.5% of reviews | **41.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 42 months | **Every 7 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 22 MB | 41 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Denis Batishchev](https://appshunter.io/developer/1179896396) | [AppLiks Sp. z O.O.](https://appshunter.io/developer/1804335622) |

## 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-true-false-test/id1642503184)

This app simulates lie detection using fingerprint and voice scanning for entertainment. It's designed for playful interactions with friends and family, allowing you to share facts and see if they're true or false. Customize results for added fun.

**Highlights:** Fingerprint scanning simulation, Voice analysis simulation, Face scanning simulation, Customizable scan results, Entertainment for friends and family

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $0.99 | per 7 days |
| Lie Detector Premium Pack | $1.99 | per 7 days |
| Weekly Access | $1.99 | per 7 days |
| Monthly Access | $2.99 | per month |
| Yearly Access | $2.99 | per year |
| Lie Detector Test Pro | $2.99 | per month |
| Yearly Access | $5.99 | per year |
| Lie Detector Premium | $5.99 | per year |

**What reviewers like**

- 🤩 Fun and entertaining
- 👍 Engaging gameplay
- 😄 Brings laughter to gatherings

**What reviewers complain about**

- 🔒 Locked features behind paywall
- 🐛 Inconsistent performance
- 🤔 Questionable accuracy of lie detection

**Reported bugs**

- App crashes after a few uses
- Fingerprint scanner not working properly
- Subscription issues and inability to cancel

**Requested features**

- Unlock all features for free
- Improve lie detection algorithm
- Add more question types and scenarios


## 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.

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

Lie Detector is rated higher. Lie Detector Test averages 3.4 out of 5 from 1.6K ratings, while Lie Detector averages 4.4 from 1.2K ratings.

### 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 7 months. Most recently, Lie Detector Test was updated on September 25, 2026 and Lie Detector on September 25, 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.*