# カップルゲーム SYNC vs Lie Detector Test

The clearest difference is update cadence: Lie Detector Test at every 3 weeks against カップルゲーム SYNC's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. カップルゲーム SYNC sells 1 one-off in-app purchase and Lie Detector Test sells 2 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

カップルゲーム SYNC ships an update every 3 months, Lie Detector Test every 3 weeks. The most recent releases landed on September 18, 2026 and September 1, 2026 respectively.

## The numbers

| Metric | カップルゲーム SYNC | Lie Detector Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/lie-detector-test-truth-prank/id6782049456/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 28 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Yuya Takamoto](https://appshunter.io/developer/1881459297) | [Thirty Three Apps](https://appshunter.io/developer/1887900142) |

## What reviewers say

### カップルゲーム SYNC

[App page](https://appshunter.io/ios/app/sync/id6762461379)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全ジャンル解放（買い切り） | $1.99 | one-time |


### 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 カップルゲーム SYNC free?

カップルゲーム SYNC is free to download, with in-app purchases available.

### Is Lie Detector Test free?

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

### Do カップルゲーム SYNC or Lie Detector Test have ads?

Both カップルゲーム SYNC and Lie Detector Test show ads.

### Which is updated more often, カップルゲーム SYNC or Lie Detector Test?

カップルゲーム SYNC ships an update every 3 months, and Lie Detector Test every 3 weeks. Most recently, カップルゲーム SYNC was updated on September 18, 2026 and Lie Detector Test on September 1, 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.*