# Truth and Lie Detector vs Lie Detector

The clearest difference is rating: Lie Detector at 5.0 against Truth and Lie Detector's 2.8. Lie Detector also leads on ads (none vs shown) and update cadence (every 2 months vs every 35 months). Truth and Lie Detector's advantage is ratings volume (49 vs 1). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Truth and Lie Detector sells 1 one-off in-app purchase 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 holds the better App Store score, 5.0 against 2.8. That said, the two scores are not equally well evidenced: Truth and Lie Detector has 49 ratings behind it against 1, so its average is the more settled of the two.

Truth and Lie Detector ships an update every 35 months, Lie Detector every 2 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Truth and Lie Detector | Lie Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (49 ratings)](https://appshunter.io/ios/app/truth-and-lie-detector/id1232853783/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lie-detector-polygraph-scanner/id6443803230/reviews)** |
| Number of ratings | **49** | 1 |
| Positive reviews | 30.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 35 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 69 MB | 14 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Abdullah Saleem](https://appshunter.io/developer/1207008098) | [Mark Hughes](https://appshunter.io/developer/1595054605) |

## What reviewers say

### Truth and Lie Detector

[App page](https://appshunter.io/ios/app/truth-and-lie-detector/id1232853783)

This entertainment app simulates a lie detector test to prank your friends. It offers a prank mode to hide instructions and create humorous situations. Remember, it's for fun and doesn't provide actual lie detection.

**Highlights:** Simulated lie detector test, Prank mode, Humorous entertainment, Fake scanner functionality

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $3.99 | one-time |


### 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 Truth and Lie Detector free?

Truth and 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.

### Which has better reviews, Truth and Lie Detector or Lie Detector?

Lie Detector is rated higher. Truth and Lie Detector averages 2.8 out of 5 from 49 ratings, while Lie Detector averages 5.0 from 1 ratings.

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

Truth and Lie Detector shows ads; Lie Detector does not.

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

Truth and Lie Detector ships an update every 35 months, and Lie Detector every 2 months. Most recently, Truth and Lie Detector was updated on October 19, 2026 and Lie Detector on October 24, 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.*