# Lie Detector vs Falling Filter Prank Challenge

The clearest difference is in-app purchases: Falling Filter Prank Challenge at none against Lie Detector's 1. Falling Filter Prank Challenge also leads on update cadence (every 2 days vs every 9 days). On price, ads, device support and iOS requirement there is nothing between them.

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

Lie Detector ships an update every 9 days, Falling Filter Prank Challenge every 2 days. The most recent releases landed on October 20, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Lie Detector | Falling Filter Prank Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (159 ratings)](https://appshunter.io/ios/app/lie-detector-prank-simulator/id6755752509/reviews)** | — |
| Number of ratings | **159** | — |
| Positive reviews | 11.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 9 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 111 MB | 9 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Neko Soft](https://appshunter.io/developer/1854316633) | [Trang Hoang Lam](https://appshunter.io/developer/1852167751) |

## 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 Prank Challenge

[App page](https://appshunter.io/ios/app/falling-filter-prank-challenge/id6761525237)

**Features:** macOS Compatibility

**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 Prank Challenge free?

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

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

Both Lie Detector and Falling Filter Prank Challenge show ads.

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

Lie Detector ships an update every 9 days, and Falling Filter Prank Challenge every 2 days. Most recently, Lie Detector was updated on October 20, 2026 and Falling Filter Prank Challenge on October 19, 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.*