Comparison

Celestia vs Nuke Simulator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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/

About

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.

Highlights
  • Nuclear explosion simulation
  • Calculate blast radius
  • Estimate fallout zones
  • Analyze casualty numbers
  • Includes historical weapons data
  • Educational awareness tool
Features
Read full description

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

Celestia4 screens
Nuke Simulator4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
Celestia versus Nuke Simulator: the parameters behind the verdict, then further details
ParameterCelestiaNuke Simulator
PriceFreeFree
Rating4.4 (324 ratings)4.5 (1K ratings) — better
Positive reviews78.3% of reviews — better50.6% of reviews
Number of ratings3241K — better
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size545 MB26 MB
Age rating4+17+
Developer林峰 李方元 朱

Customer experience

Celestia

All ratings324 ratings
Positive83.0%
Neutral4.3%
Negative12.7%
Written reviews249 reviews
Positive78.3%
Neutral5.6%
Negative16.1%

Nuke Simulator

All ratings1,011 ratings
Positive87.6%
Neutral4.1%
Negative8.3%
Written reviews77 reviews
Positive50.6%
Neutral3.9%
Negative45.5%

User reviews

Celestia

From 324 App Store ratings

What 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 ratings

What 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

4 purchases

Celestia

Subscriptions3
  • Celestia PLUS (Weekly)7 Days trial$0.997 Days
  • Celestia PLUS (Monthly)$1.991 Month
  • Celestia PLUS (Yearly)$19.991 Year
One-time1
  • Celestia PLUS (Lifetime)$79.99
1 purchases

Nuke Simulator

One-time1
  • VIP Service$0.99

Questions

Is Celestia free?
Celestia is free to download, with in-app purchases available.
Is Nuke Simulator free?
Nuke Simulator is free to download, with in-app purchases available.
Which has better reviews, Celestia or Nuke Simulator?
Nuke Simulator is rated higher. Celestia averages 4.4 out of 5 from 324 ratings, while Nuke Simulator averages 4.5 from 1K ratings.
Do Celestia or Nuke Simulator have ads?
Nuke Simulator shows ads; Celestia does not.
Which is updated more often, Celestia or Nuke Simulator?
Celestia ships an update every 2 weeks, and Nuke Simulator every 2 months. Most recently, Celestia was updated on September 25, 2026 and Nuke Simulator on September 24, 2026.

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