# Lie Detector vs ScreamOff

The clearest difference is in-app purchases: ScreamOff at none against Lie Detector's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Lie Detector sells 3 in-app purchases, starting at $4.99 per 7 days. ScreamOff asks for nothing beyond the download.

Lie Detector ships an update every 2 weeks, ScreamOff monthly. The most recent releases landed on September 11, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Lie Detector | ScreamOff |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 21 MB | 18 MB |
| Requires iOS | **17** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [No Worries! Lifestyle, LLC](https://appshunter.io/developer/1517663033) | [Benjamin Huve](https://appshunter.io/developer/6795579944) |

## What reviewers say

### Lie Detector

[App page](https://appshunter.io/ios/app/lie-detector-polygraph-and-test/id6749094292)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Monthly Premium | $24.99 | per month |
| Yearly Premium | $34.99 | per year |


### ScreamOff

[App page](https://appshunter.io/ios/app/screamoff/id6795579942)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lie Detector free?

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

### Is ScreamOff free?

ScreamOff is free to download, with no in-app purchases.

### Do Lie Detector or ScreamOff have ads?

Neither Lie Detector nor ScreamOff shows ads.

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

Lie Detector ships an update every 2 weeks, and ScreamOff monthly. Most recently, Lie Detector was updated on September 11, 2026 and ScreamOff on September 28, 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.*