# Lie Detector Test vs Lie Detector

The clearest difference is rating: Lie Detector at 5.0 against Lie Detector Test's 3.6. Lie Detector also leads on ads (none vs shown) and update cadence (every 2 months vs every 85 months). Lie Detector Test's advantage is in-app purchases (none vs 1) and ratings volume (270 vs 1). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Lie Detector sells 1 in-app purchase, starting at $2.99 per 7 days. Lie Detector Test asks for nothing beyond the download.

Lie Detector holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Lie Detector Test has 270 ratings behind it against 1, so its average is the more settled of the two.

Lie Detector Test ships an update every 85 months, Lie Detector every 2 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Lie Detector Test | Lie Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (270 ratings)](https://appshunter.io/ios/app/lie-detector-test-real-prank/id1202761013/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lie-detector-polygraph-scanner/id6443803230/reviews)** |
| Number of ratings | **270** | 1 |
| Positive reviews | 28.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 85 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 14 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) | [Mark Hughes](https://appshunter.io/developer/1595054605) |

## What reviewers say

### Lie Detector Test

[App page](https://appshunter.io/ios/app/lie-detector-test-real-prank/id1202761013)

Simulate a lie detector test using your fingerprint and pulse. Fool your friends with this prank app that offers a modern interface and immersive haptic feedback. It includes a fun DUO mode to test friends against each other.

**Highlights:** Fingerprint scanner simulation, Pulse simulator, Prank mode, DUO mode for two players, Modern interface, Haptic feedback

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 😂 Entertaining and fun for pranks with friends
- 🎮 Engaging gameplay mechanics
- ✨ Amusing when results are unexpectedly accurate
- 🤝 Good for group entertainment and social interaction

**What reviewers complain about**

- 🐛 Inaccurate lie detection results
- 📺 Excessive and intrusive advertisements
- 🎲 Appears to give random answers regardless of input
- 💾 Takes up significant storage space
- 😤 Inconsistent results on repeated questions

**Reported bugs**

- App crashes after extended use
- Gives opposite results for same question asked twice
- Detects false statements as true and vice versa
- Fails to recognize obvious truths
- Produces random results unrelated to actual input

**Requested features**

- Language selection option
- Reduce or remove advertisements
- Actual functional lie detection capability
- Improved accuracy and consistency
- Better explanation of how the app works


### 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 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 3.6 out of 5 from 270 ratings, while Lie Detector averages 5.0 from 1 ratings.

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

Lie Detector Test shows ads; Lie Detector does not.

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

Lie Detector Test ships an update every 85 months, and Lie Detector every 2 months. Most recently, Lie Detector Test was updated on October 26, 2026 and Lie Detector on October 24, 2026.

---

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