1. Home
  2. 📚 Education
  3. Celestia
Celestia - Space Simulator

Celestia - Space Simulator

3D interactive planetarium

316 ratings
240 reviews
📚 Education
🔍 Reference
Free
In-App Purchases

Details

  • Released
  • Updated
  • July 7, 2020
  • August 11, 2026

Features

Developer

林峰 李
✨Promote your app ✨
Celestia - Space Simulator screenshot #1 for iPhone
Celestia - Space Simulator screenshot #2 for iPhone
Celestia - Space Simulator screenshot #3 for iPhone
Celestia - Space Simulator screenshot #4 for iPhone
Celestia - Space Simulator screenshot #5 for iPhone
Celestia - Space Simulator screenshot #6 for iPhone
iphone
ipad
🧾$79.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐240
Reviews↘︎
📝14+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
🎪1 happening
Events↘︎
❓5 answered
FAQ↘︎
📦~ in 1 week
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

Explore the universe in real-time 3D. Visit planets, moons, star clusters, and galaxies, viewing them from any point in space and time. Customize your experience with expandable content and detailed simulations.

✓Real-time 3D space visualization
✓Explore planets, moons, stars, galaxies
✓Accurate solar system object positions
✓Interactive planetarium mode
✓Expandable content with add-ons
✓Customizable celestial databases
Show original description

What users say

Summarized from real user reviews of Celestia. Based on 316 reviews and a 4.4/5 average, it highlights the 5 positives and 5 negatives reviewers mention most about this Education app.

Positive things

  • ⭐Realistic space simulation
  • 🌌Ability to explore galaxies and star systems
  • 🔍Detailed planet and moon textures
  • 📷Great for taking screenshots
  • 🤖Reminds users of Space Engine

Negative things

  • 🐛Occasional crashes and glitches
  • 🌌Limited exploration beyond Milky Way and Andromeda
  • 🌍Flat terrain on planets
  • 🔍Lack of detail on some celestial objects
  • 🔒Paywall for some features
See all reviews

What's New in Celestia

26.8.0

August 11, 2026

1. Data update (2026-08-02) 2. Apply ring and eclipse shadow to atmospheres 3. Add more eclipse viewing options 4. Update to a new versioning system

More

Subscription plans

Celestia PLUS (Yearly)

Access to all the features in Celestia

$19.991 Year
How to cancel Celestia subscription ⁉️
1

In-App Purchases

$79.99

Celestia PLUS (Lifetime)

Access to all the features in Celestia

Events

Read more about Celebrate 25 Years of Celestia
Event EndedSpecial Event

Celebrate 25 Years of Celestia

Get a personalized UI and seamless add-on access

Feb 26, 2026 — Mar 5, 2026

Read More

See All

User reviews

Most RecentHighest RatedLowest Rated

YESSSSS

SPACE ENGINE FOR MOBILE!!! oh yeah, btw PUH-LEEZ add TON 618 and let us basically do free fly so we can discover planets and give the planets TEXTURES. THE BOSS OF SPACE SIMS ON MOBILE. I RECOMMEND INFINITELY
Shadow Milk Cookie 🥰Shadow Milk Cookie 🥰

怎么感觉没更新？

这已经更新了我进入后怎么没更新
张旻哲张旻哲

I love it but

I love this game but why is there glitches when youre halfway there in addons like it does not work halfway there and at this point just add all the things from the addons in default celestia
Levi writes reviewsLevi writes reviews

没广告爽

没有广告爽到天还给我知道了好多系外行星
宋家长子宋家长子

Read

It’s like space engine but in a different way there’s is black holes and one in the Milky Way and open clusters so you should download this warning flashing lights
Idk41599”Idk41599”
See 235 more reviews

Developer apps

Astroweather - astronomy tools
Astroweather - astronomy tools

Toolkit for stargazing

☀️ Weather

(9)

Free
In-App PurchasesWith Ads
Unarchiver - ZIP, RAR
Unarchiver - ZIP, RAR

Easy to use archive browser

🔧 Utilities

(296)

Free
See developer apps

User experience

🐞

Reported Bugs

3 issues

Milky Way and other galaxy textures not loading properly

Bug

Crashes when using certain add-ons

Bug

Issues with planet and moon orbits not being accurate

Bug
✨

Requested Features

5 requests

Add more exoplanets and distant star systems

Feature

Implement terrain generation for planets

Feature

Expand to include more galaxies and the overall universe structure

Feature

Add support for black holes, pulsars, and other exotic objects

Feature

Improve controls and camera movement

Feature

FAQ

What does Celestia do?

Celestia is a real-time 3D space simulator that allows you to explore the universe. You can visit a vast array of celestial objects, including planets, moons, star clusters, and galaxies, and view them from any perspective in space and time.

What are the key features of Celestia?

Key features include real-time 3D visualization of space, accurate simulation of solar system object positions and movements, an interactive planetarium mode for viewing the sky from any celestial body, and expandable content through add-ons for new objects and textures.

Is Celestia free to use?

The application is free to download and use, but it does offer in-app purchases. These purchases may provide access to additional content or features beyond the core simulation.

What kind of celestial objects can I explore?

You can explore a wide range of celestial objects, including planets, moons, star clusters, and galaxies. The database is expandable, meaning you can add more objects like comets, stars, asteroids, and even fictional spacecraft through add-ons.

Can I customize the content in Celestia?

Yes, Celestia's content is highly customizable. You can expand its catalogues with various add-ons that introduce new objects, high-resolution textures for planets, and 3D models for asteroids and spacecraft, allowing you to tailor the simulation to your interests.