# ことだまAR vs Lie Detector Test

The clearest difference is in-app purchases: ことだまAR at none against Lie Detector Test's 2. ことだまAR also leads on ads (none vs shown) and iOS requirement (11.0 vs 16.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Lie Detector Test sells 2 in-app purchases, starting at $9.99 per 7 days. ことだまAR asks for nothing beyond the download.

ことだまAR ships an update fortnightly, Lie Detector Test every 3 weeks. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ことだまAR | Lie Detector Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (8 ratings)](https://appshunter.io/ios/app/lie-detector-test-truth-prank/id6782049456/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 205 MB | 28 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shoma Yamaguchi](https://appshunter.io/developer/1637204246) | [Thirty Three Apps](https://appshunter.io/developer/1887900142) |

## What reviewers say

### ことだまAR

[App page](https://appshunter.io/ios/app/ar/id1637204244)

**In-app purchases:** none


### Lie Detector Test

[App page](https://appshunter.io/ios/app/lie-detector-test-truth-prank/id6782049456)

This app simulates a lie detector test for entertainment purposes. Place a finger on the scanner, ask questions, and get a 'Truth' or 'Lie' verdict. It's designed for parties and pranks, with customizable results.

**Highlights:** Fingerprint scanner simulator, Animated polygraph waveform, Customizable verdict control, Realistic sound effects and haptics, Party game for friends, Instant prank setup

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $9.99 | per 7 days |
| Monthly Subscription | $29.99 | per month |


## Frequently asked questions

### Is ことだまAR free?

ことだまAR is free to download, with no in-app purchases.

### Is Lie Detector Test free?

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

### Do ことだまAR or Lie Detector Test have ads?

Lie Detector Test shows ads; ことだまAR does not.

### Which is updated more often, ことだまAR or Lie Detector Test?

ことだまAR ships an update fortnightly, and Lie Detector Test every 3 weeks. Most recently, ことだまAR was updated on October 6, 2026 and Lie Detector Test 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.*