Celestia vs Nuke Simulator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Celestia
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
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Celestia — real-time 3D visualization of space 3D Space Simulator | Celestia lets you explore our universe in three dimensions. Celestia simulates many different types of celestial objects. From planets and moons to star clusters and galaxies, you can visit every object in the expandable database and view it from any point in space and time. The position and movement of solar system objects is calculated accurately in real time at any rate desired. Interactive Planetarium | Celestia serves as a planetarium – for an observer on any celestial object. You can easily navigate to any world and land on its surface. When used as a planetarium, Celestia shows accurate positions of solar system objects in the sky. You can switch labels and other supporting features on and off with hotkeys, or zoom in and out on an object of interest, for example Jupiter’s system of moons. Expandable Content | Customize Celestia according to your needs. Celestia’s catalogues can be easily expanded. There are many different add-ons available containing new objects like comets or stars, high-resolution textures of Earth and other well mapped solar system bodies, as well as 3D models for asteroids and spacecraft on precise trajectories. Even fictional objects from well-known sci-fi franchises can be found. EULA(End User License Agreement): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Nuke Simulator
Simulate nuclear explosions to understand their destructive effects and calculate blast radii and fallout zones. Learn about historical weapons and their yields for educational and awareness purposes.
- Nuclear explosion simulation
- Calculate blast radius
- Estimate fallout zones
- Analyze casualty numbers
- Includes historical weapons data
- Educational awareness tool
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The Nuclear Bomb Simulator is a free app designed to calculate the areas affected by a nuclear explosion based on the nuclear explosion formula. This app is suitable for those who wish to learn about the destructive effects of nuclear explosions and may be useful for evacuation planning. The app can calculate the approximate radiation radius and possible number of casualties based on a list of existing or past weapons and their yields, such as Fat Man, Little Boy, Tsar Bomba, and 28 other weapons with their respective yields. The development of this app is primarily for educational and awareness purposes. We hope for world peace and the preservation of our planet!
Screenshots
Verdict
The clearest difference is ads: Celestia at none against Nuke Simulator's shown. Celestia also leads on review sentiment (78% vs 51%) and update cadence (every 2 weeks vs every 2 months). Nuke Simulator's advantage is ratings volume (1K vs 324). On price, rating, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Celestia sells 4 in-app purchases, starting at $0.99 per 7 days and Nuke Simulator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.4 for Celestia against 4.5 for Nuke Simulator. Both are backed by a comparable volume of ratings — 324 and 1K respectively. Written reviews are what separate them: 78% of Celestia's written reviews are positive against 51% of Nuke Simulator's.
Celestia ships an update every 2 weeks, Nuke Simulator every 2 months. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.
| Parameter | Celestia | Nuke Simulator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (324 ratings) | 4.5 (1K ratings) — better |
| Positive reviews | 78.3% of reviews — better | 50.6% of reviews |
| Number of ratings | 324 | 1K — better |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 545 MB | 26 MB |
| Age rating | 4+ | 17+ |
| Developer | 林峰 李 | 方元 朱 |
Customer experience
Celestia
Nuke Simulator
User reviews
Celestia
From 324 App Store ratingsWhat we love
- ⭐ Realistic space simulation
- 🌌 Ability to explore galaxies and star systems
- 🔍 Detailed planet and moon textures
- 📷 Great for taking screenshots
- 🤖 Reminds users of Space Engine
Room to improve
- 🐛 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
Nuke Simulator
From 1K App Store ratingsWhat we love
- 👍 Good games
- 🔍 Useful for testing nuclear blast effects
- 💡 Customizable bombs
Room to improve
- 🤑 Monetization issues (ads, paywalls)
- 🐛 Inaccurate casualty estimates
- 🤖 Buggy and unstable
Bugs and requests
Celestia
Reported bugs
3 issues- Milky Way and other galaxy textures not loading properly
- Crashes when using certain add-ons
- Issues with planet and moon orbits not being accurate
Requested features
5 requests- Add more exoplanets and distant star systems
- Implement terrain generation for planets
- Expand to include more galaxies and the overall universe structure
- Add support for black holes, pulsars, and other exotic objects
- Improve controls and camera movement
Nuke Simulator
Reported bugs
3 issues- Crashes and network errors
- Inconsistent casualty counts
- Compatibility issues on older devices
Requested features
3 requests- More bomb options and customization
- Improved accuracy of casualty estimates
- Reduce ads and monetization
In-app purchases
Celestia
- Celestia PLUS (Weekly)7 Days trial$0.997 Days
- Celestia PLUS (Monthly)$1.991 Month
- Celestia PLUS (Yearly)$19.991 Year
- Celestia PLUS (Lifetime)$79.99
Nuke Simulator
- VIP Service$0.99
Questions
Is Celestia free?
Is Nuke Simulator free?
Which has better reviews, Celestia or Nuke Simulator?
Do Celestia or Nuke Simulator have ads?
Which is updated more often, Celestia or Nuke Simulator?
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