# ChessFirst vs Space Atlas

The clearest difference is in-app purchases: ChessFirst at none against Space Atlas's 1. Space Atlas's advantage is update cadence (every 2 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Space Atlas sells 1 one-off in-app purchase. ChessFirst asks for nothing beyond the download.

ChessFirst ships an update monthly, Space Atlas every 2 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ChessFirst | Space Atlas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/space-atlas-cosmos-guide/id6760565362/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 29 MB | 52 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oleg Borkin](https://appshunter.io/developer/1795916231) | [Kodjovi Mlapa](https://appshunter.io/developer/1884325240) |

## What reviewers say

### ChessFirst

[App page](https://appshunter.io/ios/app/chessfirst/id6741854874)

**Features:** macOS Compatibility

**In-app purchases:** none


### Space Atlas

[App page](https://appshunter.io/ios/app/space-atlas-cosmos-guide/id6760565362)

Explore the universe with interactive 3D models, real-time space data, and daily NASA images. Learn through educational articles and test your knowledge with challenging quizzes. Plan your stargazing sessions with helpful night-sky guidance.

**Highlights:** Interactive 3D solar system, Real-time space data tracking, Daily NASA imagery, Educational articles, Challenging quizzes, Sky observation tools

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Space Atlas Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is ChessFirst free?

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

### Is Space Atlas free?

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

### Do ChessFirst or Space Atlas have ads?

Neither ChessFirst nor Space Atlas shows ads.

### Which is updated more often, ChessFirst or Space Atlas?

ChessFirst ships an update monthly, and Space Atlas every 2 days. Most recently, ChessFirst was updated on October 25, 2026 and Space Atlas 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.*