# Real Solar System vs Project Planet Space

The clearest difference is update cadence: Real Solar System at monthly against Project Planet Space's every 25 months. Project Planet Space's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Real Solar System ships an update monthly, Project Planet Space every 25 months. The most recent releases landed on September 20, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Real Solar System | Project Planet Space |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 25 months |
| Size | 302 MB | 2 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Masaya Nagaoka](https://appshunter.io/developer/1698240335) | [Miroslav Hanzelka](https://appshunter.io/developer/1653768748) |

## What reviewers say

### Real Solar System

[App page](https://appshunter.io/ios/app/real-solar-system/id6475644962)

**In-app purchases:** none


### Project Planet Space

[App page](https://appshunter.io/ios/app/project-planet-space/id6499347273)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Real Solar System free?

Real Solar System is free to download, with no in-app purchases.

### Is Project Planet Space free?

Project Planet Space is free to download, with no in-app purchases.

### Do Real Solar System or Project Planet Space have ads?

Neither Real Solar System nor Project Planet Space shows ads.

### Which is updated more often, Real Solar System or Project Planet Space?

Real Solar System ships an update monthly, and Project Planet Space every 25 months. Most recently, Real Solar System was updated on September 20, 2026 and Project Planet Space on May 16, 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.*