# Lie Detector vs Liar Catcher Detector

The clearest difference is device support: Lie Detector at 3 against Liar Catcher Detector's 1. Lie Detector also leads on iOS requirement (15.6 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Lie Detector sells 8 in-app purchases, starting at $0.99 per 7 days and Liar Catcher Detector sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Lie Detector ships an update every 7 months, Liar Catcher Detector every 4 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Lie Detector | Liar Catcher Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (1.2K ratings)](https://appshunter.io/ios/app/lie-detector-true-false-test/id1642503184/reviews)** | — |
| Number of ratings | **1.2K** | — |
| Positive reviews | 41.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Every 4 months** |
| Monetization | Free with in-app purchases | — |
| Size | 41 MB | 7 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [AppLiks Sp. z O.O.](https://appshunter.io/developer/1804335622) | [Maria Bayas](https://appshunter.io/developer/1178999943) |

## What reviewers say

### 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


### Liar Catcher Detector

[App page](https://appshunter.io/ios/app/liar-catcher-detector/id6758356557)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium Year | $14.99 | per year |


## Frequently asked questions

### Is Lie Detector free?

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

### Is Liar Catcher Detector free?

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

### Do Lie Detector or Liar Catcher Detector have ads?

Both Lie Detector and Liar Catcher Detector show ads.

### Which is updated more often, Lie Detector or Liar Catcher Detector?

Lie Detector ships an update every 7 months, and Liar Catcher Detector every 4 months. Most recently, Lie Detector was updated on November 3, 2026 and Liar Catcher Detector on October 31, 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.*