# ChessMaster vs Oddfish

The clearest difference is in-app purchases: ChessMaster at none against Oddfish's 1. ChessMaster also leads on iOS requirement (13.0 vs 18.0). Oddfish's advantage is ads (none vs shown) and update cadence (daily vs weekly). On price and device support there is nothing between them.

Both are free to download. Oddfish sells 1 one-off in-app purchase. ChessMaster asks for nothing beyond the download.

ChessMaster ships an update weekly, Oddfish daily. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ChessMaster | Oddfish |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Daily** |
| Size | 27 MB | 110 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HYO JONG YOO](https://appshunter.io/developer/1879487756) | [JOHN EBENEZER JOHNSON](https://appshunter.io/developer/1882112585) |

## What reviewers say

### ChessMaster

[App page](https://appshunter.io/ios/app/chessmaster-ai-chess/id6775846082)

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

**In-app purchases:** none


### Oddfish

[App page](https://appshunter.io/ios/app/oddfish-strange-chess/id6808770307)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Oddfish | $4.99 | one-time |


## Frequently asked questions

### Is ChessMaster free?

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

### Is Oddfish free?

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

### Do ChessMaster or Oddfish have ads?

ChessMaster shows ads; Oddfish does not.

### Which is updated more often, ChessMaster or Oddfish?

ChessMaster ships an update weekly, and Oddfish daily. Most recently, ChessMaster was updated on November 5, 2026 and Oddfish 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.*