# Reversi Trio vs Chess Codex

The clearest difference is in-app purchases: Chess Codex at none against Reversi Trio's 3. Chess Codex also leads on update cadence (every 3 days vs fortnightly) and iOS requirement (15.1 vs 17.5). On price, ads and device support there is nothing between them.

Both are free to download. Reversi Trio sells 2 one-off in-app purchases. Chess Codex asks for nothing beyond the download.

Reversi Trio ships an update fortnightly, Chess Codex every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Reversi Trio | Chess Codex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 10 MB | 36 MB |
| Requires iOS | 17.5 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Isao Yamaguchi](https://appshunter.io/developer/1538751336) | [Vince Lubbers](https://appshunter.io/developer/1889839785) |

## What reviewers say

### Reversi Trio

[App page](https://appshunter.io/ios/app/reversi-trio-3-player/id6759812198)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sakura Theme | $1.99 | one-time |
| Remove Ads | $4.99 | one-time |


### Chess Codex

[App page](https://appshunter.io/ios/app/chess-codex/id6778615817)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Reversi Trio free?

Reversi Trio is free to download, with in-app purchases available.

### Is Chess Codex free?

Chess Codex is free to download, with no in-app purchases.

### Do Reversi Trio or Chess Codex have ads?

Both Reversi Trio and Chess Codex show ads.

### Which is updated more often, Reversi Trio or Chess Codex?

Reversi Trio ships an update fortnightly, and Chess Codex every 3 days. Most recently, Reversi Trio was updated on October 31, 2026 and Chess Codex on October 31, 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.*