# ことだまAR vs Lie Detector

The clearest difference is in-app purchases: ことだまAR at none against Lie Detector's 2. ことだまAR also leads on update cadence (fortnightly vs every 2 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Lie Detector 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 every 2 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ことだまAR | Lie Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/lie-detector-voice-test/id6757195302/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | — | Subscription |
| Size | 205 MB | 20 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shoma Yamaguchi](https://appshunter.io/developer/1637204246) | [Evrim AYAZ](https://appshunter.io/developer/1780294826) |

## What reviewers say

### ことだまAR

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

**In-app purchases:** none


### Lie Detector

[App page](https://appshunter.io/ios/app/lie-detector-voice-test/id6757195302)

Engage in interactive lie-detection simulations for entertainment. Analyze voice tone and reaction timing for fun scenarios with friends. Experience a modern design for quick, light-hearted moments.

**Highlights:** Interactive lie-detection simulations, Voice tone analysis, Reaction timing analysis, Modern design, Fast and easy to use, Multiple lie detector modes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trial Weekly VIP | $9.99 | per 7 days |
| Trial Annual VIP | $49.99 | per year |


## 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 free?

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

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

Neither ことだまAR nor Lie Detector shows ads.

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

ことだまAR ships an update fortnightly, and Lie Detector every 2 months. Most recently, ことだまAR was updated on October 27, 2026 and Lie Detector on October 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.*