# Let's JanKen vs Synchro Reversi

The clearest difference is ads: Let's JanKen at none against Synchro Reversi's shown. Let's JanKen also leads on iOS requirement (13.4 vs 15.0). Synchro Reversi's advantage is update cadence (every 5 days vs every 6 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Let's JanKen ships an update every 6 weeks, Synchro Reversi every 5 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Let's JanKen | Synchro Reversi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Size | 1 MB | 72 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [DREAM ON LINE CO., LTD.](https://appshunter.io/developer/744835198) | [nihee, LLC](https://appshunter.io/developer/1572307539) |

## What reviewers say

### Let's JanKen

[App page](https://appshunter.io/ios/app/lets-janken/id1512320698)

**Features:** macOS Compatibility

**In-app purchases:** none


### Synchro Reversi

[App page](https://appshunter.io/ios/app/synchro-reversi/id1581248956)

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

**In-app purchases:** none


## Frequently asked questions

### Is Let's JanKen free?

Let's JanKen is free to download, with no in-app purchases.

### Is Synchro Reversi free?

Synchro Reversi is free to download, with no in-app purchases.

### Do Let's JanKen or Synchro Reversi have ads?

Synchro Reversi shows ads; Let's JanKen does not.

### Which is updated more often, Let's JanKen or Synchro Reversi?

Let's JanKen ships an update every 6 weeks, and Synchro Reversi every 5 days. Most recently, Let's JanKen was updated on October 27, 2026 and Synchro Reversi on October 30, 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.*