# IgoStadium vs Learn Chess Openings with Cat

The clearest difference is in-app purchases: IgoStadium at none against Learn Chess Openings with Cat's 8. IgoStadium also leads on iOS requirement (10.0 vs 13.0). Learn Chess Openings with Cat's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Learn Chess Openings with Cat sells 8 one-off in-app purchases. IgoStadium asks for nothing beyond the download.

IgoStadium ships an update fortnightly, Learn Chess Openings with Cat every 2 weeks. The most recent releases landed on November 2, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | IgoStadium | Learn Chess Openings with Cat |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 79 MB | 29 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [naoki jinguji](https://appshunter.io/developer/1262745626) | [REBRON](https://appshunter.io/developer/1777058665) |

## What reviewers say

### IgoStadium

[App page](https://appshunter.io/ios/app/igostadium/id1449667146)

Engage in online matches of the strategic board game Go with players worldwide or against AI. Enjoy customizable game times and practice on a virtual examination board. Offers features for playing with friends and observing live games.

**Highlights:** Online matchmaking with global players, Play against Go AI, Play with friends, Customizable game timers, Watch live matches, Examination board for practice

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

**In-app purchases:** none


### Learn Chess Openings with Cat

[App page](https://appshunter.io/ios/app/learn-chess-openings-with-cat/id6766206115)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Popular No.4 Semi-Slav Defense | $1.99 | one-time |
| Popular No.5 French Defense | $1.99 | one-time |
| Popular No.6 Caro-Kann Defense | $1.99 | one-time |
| Popular No.7 English Opening | $1.99 | one-time |
| Popular No.8 King’s Indian Attack | $1.99 | one-time |
| Popular No.9 Scandinavian Defense | $1.99 | one-time |
| Popular No.10 Pirc Defense | $1.99 | one-time |
| Unlock All Openings | $7.99 | one-time |


## Frequently asked questions

### Is IgoStadium free?

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

### Is Learn Chess Openings with Cat free?

Learn Chess Openings with Cat is free to download, with in-app purchases available.

### Do IgoStadium or Learn Chess Openings with Cat have ads?

IgoStadium shows ads; Learn Chess Openings with Cat does not.

### Which is updated more often, IgoStadium or Learn Chess Openings with Cat?

IgoStadium ships an update fortnightly, and Learn Chess Openings with Cat every 2 weeks. Most recently, IgoStadium was updated on November 2, 2026 and Learn Chess Openings with Cat on November 9, 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.*