# Lie Detector vs Falling Filter Challenge

The clearest difference is rating: Falling Filter Challenge at 4.5 against Lie Detector's 3.2. Falling Filter Challenge also leads on in-app purchases (none vs 1) and ratings volume (1.1K vs 114). Lie Detector's advantage is update cadence (every 8 days vs every 4 months). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Lie Detector sells 1 one-off in-app purchase. Falling Filter Challenge asks for nothing beyond the download.

Falling Filter Challenge holds the better App Store score, 4.5 against 3.2. That said, the two scores are not equally well evidenced: Falling Filter Challenge has 1.1K ratings behind it against 114, so its average is the more settled of the two. Written reviews complicate that: 11% of Lie Detector's written reviews are positive against 10% of Falling Filter Challenge's, so the app with the better star average is not the one people write more warmly about.

Lie Detector ships an update every 8 days, Falling Filter Challenge every 4 months. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Lie Detector | Falling Filter Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (114 ratings)](https://appshunter.io/ios/app/lie-detector-prank-simulator/id6755752509/reviews) | **[4.5 (1.1K ratings)](https://appshunter.io/ios/app/falling-filter-challenge/id6757388689/reviews)** |
| Number of ratings | 114 | **1.1K** |
| Positive reviews | **10.5% of reviews** | 9.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 8 days** | Every 4 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 55 MB | 39 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Neko Soft](https://appshunter.io/developer/1854316633) | [Huong Hoang](https://appshunter.io/developer/1737372409) |

## What reviewers say

### Lie Detector

[App page](https://appshunter.io/ios/app/lie-detector-prank-simulator/id6755752509)

This app simulates lie detection using fingerprint, eye, and voice scanners for entertainment. It's designed to prank friends and family with fun sound effects and secret result controls.

**Highlights:** Simulated fingerprint scanner, Simulated eye scanner, Simulated voice detector, Fun sound effects, Secret result control

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $6.99 | one-time |


### Falling Filter Challenge

[App page](https://appshunter.io/ios/app/falling-filter-challenge/id6757388689)

This app offers realistic falling and whirlpool effects to create surprising and viral short videos. Easily shock friends, capture reactions, or make funny social media content with its user-friendly interface. No editing skills are needed to achieve these dynamic visual transformations.

**Highlights:** Realistic falling effect, Whirlpool filter, Wave filter, Easy to use, No editing skills required

**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 Falling Filter Challenge free?

Falling Filter Challenge is free to download, with no in-app purchases.

### Which has better reviews, Lie Detector or Falling Filter Challenge?

Falling Filter Challenge is rated higher. Lie Detector averages 3.2 out of 5 from 114 ratings, while Falling Filter Challenge averages 4.5 from 1.1K ratings.

### Do Lie Detector or Falling Filter Challenge have ads?

Both Lie Detector and Falling Filter Challenge show ads.

### Which is updated more often, Lie Detector or Falling Filter Challenge?

Lie Detector ships an update every 8 days, and Falling Filter Challenge every 4 months. Most recently, Lie Detector was updated on September 21, 2026 and Falling Filter Challenge on September 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.*