# CosmAtlas

> Realistic Milky Way simulator for iPhone and iPad with celestial body positioning. (iPhone/iPad app by Aurelio Calegari.)

- Source: https://appshunter.io/ios/app/cosmatlas/id916541593 (this page in markdown: same URL + `.md`)
- Developer: [Aurelio Calegari](https://appshunter.io/developer/622340318)
- Category: Education, Reference
- Price: Free
- Rating: 4.00/5 from 15 App Store ratings · 16 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.1 · 868 MB
- Languages: English
- Released: 2014-09-28
- Data updated: 2026-07-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/cosmatlas/id916541593/reviews.md

## What is CosmAtlas?

CosmAtlas is a powerful Milky Way simulator for iPhone and iPad devices, which applies real physics to calculate every single celestial body position at any time between the year 0 to year 9999.

With this educational App you'll be able to navigate across the astronomical distances in our cosmos, land on the major planets and satellites and see the sky from there or read about it.

Main Features

- More than 400 Solar System bodies, including:
  - The 8 major planets;
  -177 Solar System natural satellites;
  - 295 comets (including the legendary Halley's Comet);
  - 11 dwarf planets (including Pluto);
  - 3 major asteroid groups: Asteroid Belt, Kuiper Belt, Oort Cloud;
- 1449 nearby bright stars;
- The 88 modern constellations;
- Real physics (celestial mechanics) on the objects positioning in relation of time;
- See the sky from the surface of the major planets/dwarf planets, the sun and major satellites;
- A few terrestrial planets and satellites will have an approximate terrain if your on the surface;
- Atmospheric effects also tuned to the reality (that includes twilight sky colours).

Languages
Six languages available to maximise the educational reach:
- English;
- Spanish;
- Portuguese;
- Italian;
- French;
- German;

## Key features

- Milky Way simulation
- Real physics engine
- Explore planets and moons
- Detailed celestial body data
- View sky from different locations
- Multi-language support

## Recent user reviews (10 of 16)

All indexed reviews: https://appshunter.io/ios/app/cosmatlas/id916541593/reviews.md

### 5/5 — It’s been a long time

*2025-12-28*

This app is really cool! It’s just that it hasn’t been updated for a very long time, but it doesn’t matter because it’s still good. Anyways I guess I’m done talking, well goodbye I guess. 🙂

### 5/5 — Berwick sky’s

*2021-08-21, version 1.1*

Excellent app. Love all the functions & there’s great information to read through.

### 1/5 — Doesn’t load

*2021-02-19, version 1.1*

This app looked  like it might be interesting unfortunately though it doesn’t load so I’ll never know if it is interesting or not.

### 5/5 — Excellent Astronomy App

*2020-05-13*

I am constantly looking for astronomy apps like this one. They are too few and far between. So, when I came across this it was a sheer delight. The only knock I can think of is that the developer hasn't updated the app since 2014 but I can live with that. I can spend hours long around inside this app. There's a wealth of great info and any future updates can only improve upon this great foundation!

Update written on 05/12/2020
This wonderful app has apparently been abandoned. It's a shame because this one had so much potential. I hope the developer comes back to update it eventually.

### 5/5 — Es un juego muy educativo porque te muestra toda la galaxia por fuera y por dentro.

*2020-04-22, version 1.1*

Yo si doy 5 estrellas

### 5/5 — Unknown

*2019-11-08, version 1.1*

Wow I’ll never know what Saturn’s ring made of if I  haven’t download this app

### 5/5 — Please update this good app

*2019-08-25*

The good news about this app is that it’s free. As other users have noted this is a good astronomy application. They also stated that it crashes too often and needs updating. This is still true. The support link and developer website are both broken. Please update this application to the current IOS and keep it current. It is very useful and it would be a shame to loose it.

### 3/5 — Cool but abandoned

*2019-08-18*

It’s cool but it keeps crashing. The developer hasn’t updated it in years which is almost certainty why it crashes.  

I hope it gets fixed but considering the large amount of memory it uses I will have to delete it for now.

### 5/5 — Nice 3D navigation

*2019-01-16*

I like the navigation and the view of 3D rotation, low resolution is fine, hope with a update solve few things.
Thank for developing this app.

### 5/5 — Excelente

*2018-10-06, version 1.1*

Excelente

## Frequently asked questions about CosmAtlas

### What is CosmAtlas?

CosmAtlas is a powerful Milky Way simulator for iPhone and iPad that uses real physics to calculate the positions of celestial bodies between the years 0 and 9999. It allows users to navigate the cosmos and learn about astronomical objects.

### What celestial bodies are included in CosmAtlas?

CosmAtlas features over 400 Solar System bodies, including the 8 major planets, 177 natural satellites, 295 comets, 11 dwarf planets, and major asteroid groups. It also includes 1449 nearby bright stars and the 88 modern constellations.

### Can I see the sky from other planets in CosmAtlas?

Yes, you can see the sky from the surface of major planets, dwarf planets, the sun, and major satellites. Some terrestrial planets and satellites offer approximate terrain views.

### What languages does CosmAtlas support?

CosmAtlas is available in six languages to maximize its educational reach: English, Spanish, Portuguese, Italian, French, and German.

### Is CosmAtlas suitable for younger users?

CosmAtlas has an age rating of 4+, making it suitable for young learners interested in space and astronomy. The app provides an educational experience about the solar system.

### How often is CosmAtlas updated?

The latest version of CosmAtlas is 1.1, which was last updated on April 4, 2016. While the app has not been updated recently, its core functionality remains robust for its intended educational purpose.

### Does CosmAtlas have ads?

No, CosmAtlas is ad-free. Users can enjoy the educational experience without any advertisements interrupting their exploration of the cosmos.

### What devices can I use CosmAtlas on?

CosmAtlas is available for iPhone, iPad, and iPod devices, offering a comprehensive astronomical simulation experience across Apple's mobile platforms.

## Version history (last 3 releases)

### 1.1 — 2016-04-04

This app has been updated by Apple to display the Apple Watch app icon.

Performance improvements and compatibility fixes for iOS 8.1+.

### 1.0.5 — 2014-10-11

Minor bug fixes

### 1.0 — 2014-09-27

No release notes.

## Apps similar to CosmAtlas

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Planet Fun](https://appshunter.io/ios/app/planet-fun/id1525941640) | 4.8 (8) | Free | Education |
| [DIY Solar System](https://appshunter.io/ios/app/diy-solar-system/id1644242890) | 4.5 (16) | Free | Education |
| [Atlas of Moons](https://appshunter.io/ios/app/atlas-of-moons/id1520266563) | 4.5 (25) | Free | Education |
| [Planet cards](https://appshunter.io/ios/app/planet-cards/id1596481804) | — | Free | Education |
| [Intergalactic Solar System](https://appshunter.io/ios/app/intergalactic-solar-system/id1505399254) | 4.0 (25) | Free | Education |
| [Sistema Solar RA](https://appshunter.io/ios/app/sistema-solar-ra/id1440541786) | 5.0 (1) | Free | Education |

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-04.*