# Space Orbit vs Astrarium

The clearest difference is update cadence: Space Orbit at daily against Astrarium's every 9 days. Space Orbit also leads on iOS requirement (15.6 vs 17.0). 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.

Space Orbit ships an update daily, Astrarium every 9 days. The most recent releases landed on September 12, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Space Orbit | Astrarium |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 9 days |
| Monetization | — | Free |
| Size | 4 MB | 71 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [TOSHIYA ARAI](https://appshunter.io/developer/1798408372) | [Shinsuke Abe](https://appshunter.io/developer/6790818921) |

## What reviewers say

### Space Orbit

[App page](https://appshunter.io/ios/app/space-orbit/id6742439600)

**Features:** macOS Compatibility

**In-app purchases:** none


### Astrarium

[App page](https://appshunter.io/ios/app/astrarium/id6795053748)

Explore the cosmos with an offline planetarium and sky atlas. View stars, nebulae, constellations, planets, and more with detailed information and adjustable time settings. Includes augmented reality features and export options.

**Highlights:** Offline sky charting, Detailed star and object catalogs, Adjustable time and location settings, Augmented reality view, Meteor shower calendar, Satellite tracking, PNG/PDF export

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Space Orbit free?

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

### Is Astrarium free?

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

### Do Space Orbit or Astrarium have ads?

Neither Space Orbit nor Astrarium shows ads.

### Which is updated more often, Space Orbit or Astrarium?

Space Orbit ships an update daily, and Astrarium every 9 days. Most recently, Space Orbit was updated on September 12, 2026 and Astrarium on September 21, 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.*