# Chess x AI vs Oddfish

The clearest difference is in-app purchases: Chess x AI at none against Oddfish's 1. Chess x AI also leads on iOS requirement (15.0 vs 18.0). Oddfish's advantage is ads (none vs shown) and update cadence (daily vs every 2 days). On price and device support there is nothing between them.

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

Chess x AI ships an update every 2 days, Oddfish daily. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Chess x AI | Oddfish |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 days | **Daily** |
| Size | 66 MB | 110 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Deniz Uyanik](https://appshunter.io/developer/1889636427) | [JOHN EBENEZER JOHNSON](https://appshunter.io/developer/1882112585) |

## What reviewers say

### Chess x AI

[App page](https://appshunter.io/ios/app/chess-x-ai/id6770052630)

**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 Chess x AI free?

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

### Is Oddfish free?

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

### Do Chess x AI or Oddfish have ads?

Chess x AI shows ads; Oddfish does not.

### Which is updated more often, Chess x AI or Oddfish?

Chess x AI ships an update every 2 days, and Oddfish daily. Most recently, Chess x AI was updated on November 10, 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.*