# Lie Detector vs Lie Detector

The clearest difference is ads: Lie Detector at none against Lie Detector's shown. Lie Detector also leads on update cadence (every 2 months vs every 7 months) and iOS requirement (13.0 vs 15.6). On price, in-app purchases and device support 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 Lie Detector sells 1 in-app purchase, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Lie Detector ships an update every 7 months, Lie Detector every 2 months. The most recent releases landed on September 25, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Lie Detector | Lie 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 | **No** |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 41 MB | 14 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AppLiks Sp. z O.O.](https://appshunter.io/developer/1804335622) | [Mark Hughes](https://appshunter.io/developer/1595054605) |

## 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


### Lie Detector

[App page](https://appshunter.io/ios/app/lie-detector-polygraph-scanner/id6443803230)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lie detector | $2.99 | per 7 days |


## Frequently asked questions

### Is Lie Detector free?

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

### Is Lie Detector free?

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

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

Lie Detector shows ads; Lie Detector does not.

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

Lie Detector ships an update every 7 months, and Lie Detector every 2 months. Most recently, Lie Detector was updated on September 25, 2026 and Lie Detector on September 14, 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.*