# Astris vs Real Solar System

The clearest difference is update cadence: Real Solar System at monthly against Astris's every 3 months. Astris'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.

Astris ships an update every 3 months, Real Solar System monthly. The most recent releases landed on May 16, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Astris | Real Solar System |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Size | 21 MB | 302 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ISTITUTI EDMONDO DE AMICIS SRL](https://appshunter.io/developer/1219261025) | [Masaya Nagaoka](https://appshunter.io/developer/1698240335) |

## What reviewers say

### Astris

[App page](https://appshunter.io/ios/app/astris/id6454899891)

**Features:** macOS Compatibility

**In-app purchases:** none


### Real Solar System

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

**In-app purchases:** none


## Frequently asked questions

### Is Astris free?

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

### Is Real Solar System free?

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

### Do Astris or Real Solar System have ads?

Neither Astris nor Real Solar System shows ads.

### Which is updated more often, Astris or Real Solar System?

Astris ships an update every 3 months, and Real Solar System monthly. Most recently, Astris was updated on May 16, 2026 and Real Solar System on September 20, 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.*