# Alien Galaxy vs Chess Coach

The clearest difference is in-app purchases: Alien Galaxy at none against Chess Coach's 1. Alien Galaxy also leads on iOS requirement (13.0 vs 17.6). Chess Coach's advantage is update cadence (every 5 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Chess Coach sells 1 in-app purchase, starting at $3.99 per month. Alien Galaxy asks for nothing beyond the download.

Alien Galaxy ships an update every 2 months, Chess Coach every 5 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Alien Galaxy | Chess Coach |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Size | 308 MB | 1 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Zomob Games](https://appshunter.io/developer/1712101208) | [Super Duper](https://appshunter.io/developer/1825997289) |

## What reviewers say

### Alien Galaxy

[App page](https://appshunter.io/ios/app/alien-galaxy-the-war/id6504851053)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chess Coach

[App page](https://appshunter.io/ios/app/chess-coach-game-analysis/id6774569237)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $3.99 | per month |


## Frequently asked questions

### Is Alien Galaxy free?

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

### Is Chess Coach free?

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

### Do Alien Galaxy or Chess Coach have ads?

Neither Alien Galaxy nor Chess Coach shows ads.

### Which is updated more often, Alien Galaxy or Chess Coach?

Alien Galaxy ships an update every 2 months, and Chess Coach every 5 days. Most recently, Alien Galaxy was updated on November 8, 2026 and Chess Coach on November 5, 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.*