Planet simulation vs Idle Universe!
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Planet simulation
Design and build your own solar system with various stars. Explore the fascinating world of gravity and recreate celestial bodies. A relaxing game for your spare time.
- Create your own solar system
- Simulate gravity
- Design with various stars
- Reproduce celestial bodies
- Relaxing gameplay
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Enjoy world of gravity! Planet simulation game can also reproduce solar system. Create the universe with various stars. You may be able to recreate the solar system. In spare time or boring time, it is a recommended game. This game is the 2nd iOS game for the Web Game Site "DAN-BALL"
Idle Universe!
Create your own solar system by starting with a meteorite and evolving planets. Explore the universe, discover black holes, and unlock new galaxies and celestial bodies.
- Create planets from meteorites
- Build your own solar system
- Explore the universe
- Discover black holes
- Unlock new galaxies
- Collect celestial bodies
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Do you know the planets of our solar system? Have you ever wondered how the solar system works? In IDLE UNIVERSE, you will create planet from a meteorite. Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, you will have the entire solar system. Explore the universe and understand the mysteries of black holes. Other galaxies, more planets, are waiting for your discovery.
Screenshots
Verdict
The clearest difference is rating: Planet simulation at 3.9 against Idle Universe!'s 3.4. Planet simulation also leads on review sentiment (74% vs 40%). Idle Universe!'s advantage is ads (none vs shown) and update cadence (weekly vs every 8 months). On price, ratings volume, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
Planet simulation holds the better App Store score, 3.9 against 3.4. Both are backed by a comparable volume of ratings — 165 and 164 respectively. Written reviews point the same way: 74% of Planet simulation's written reviews are positive against 40% of Idle Universe!'s.
Planet simulation ships an update every 8 months, Idle Universe! weekly. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.
| Parameter | Planet simulation | Idle Universe! |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (165 ratings) — better | 3.4 (164 ratings) |
| Positive reviews | 74.3% of reviews — better | 40.4% of reviews |
| Number of ratings | 165 — better | 164 |
| Update frequency | Every 8 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 144 MB |
| Age rating | 4+ | 9+ |
| Developer | DAN-BALL | 泽鹏 韦 |
Customer experience
Planet simulation
Idle Universe!
User reviews
Planet simulation
From 165 App Store ratingsWhat we love
- 🚀 Realistic gravity simulation
- 👍 Fun to mess around with
- 🎨 Visually appealing
- 🤖 Good for learning about planetary motion
Room to improve
- 🐛 Planets often crash into the sun
- 🔍 Limited features and customization options
- 📢 Distracting ads
- 🤯 Confusing controls and UI
Idle Universe!
From 164 App Store ratingsWhat we love
- 🎮 Fun and addictive gameplay mechanics
- 👍 User-friendly interface and design
- ✨ Visually appealing planet graphics
- 📱 Works well on iPad
- 🎯 Engaging progression system through planets
Room to improve
- 🐛 Black hole feature completely non-functional
- ⏱️ Game completable in just a few hours
- 📱 Inconsistent performance between phone and iPad
- 💰 Excessive ads and ad-watching requirements
- ❌ No offline currency generation despite 'idle' label
Bugs and requests
Planet simulation
Reported bugs
3 issues- Planets sometimes disappear or behave erratically
- App crashes or freezes occasionally
- Scaling and scrolling issues
Requested features
5 requests- Add more celestial objects (black holes, supernovas, etc.)
- Allow for more complex orbits and binary systems
- Implement a save/load feature for solar systems
- Add a tutorial or help section
- Integrate with educational resources on astronomy
Idle Universe!
Reported bugs
8 issues- Black hole button locked and non-functional after Neptune
- Cannot reset world/progress despite unlocking Earth
- Offline earnings screen freezes and doesn't award currency
- Game progression stops at Neptune with no continuation
- Earth unlock requirement for black hole doesn't unlock properly
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- Negative currency bug when reaching Neptune
- Inconsistent cross-platform functionality (phone vs iPad)
- Inaccurate planet size scaling (planets larger than sun)
Requested features
10 requests- Add additional solar systems and galaxies
- Fix and implement functional black hole reset mechanic
- Add Pluto as a playable planet
- Implement offline idle earnings
- Add prestige/progression system
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- Expand game content beyond single solar system
- Improve planet upgrade screen visibility
- Add progress bars for planet completion tracking
- Enable world reset functionality
- Restore features from predecessor 'Idle Galaxy' game
In-app purchases
Planet simulation
No in-app purchases
Idle Universe!
No in-app purchases
Questions
Is Planet simulation free?
Is Idle Universe! free?
Which has better reviews, Planet simulation or Idle Universe!?
Do Planet simulation or Idle Universe! have ads?
Which is updated more often, Planet simulation or Idle Universe!?
Other comparisons
