Planet simulation vs Pet Rock 2
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"
Pet Rock 2
Create and evolve unique exoplanets from a simple rock. Adjust orbital parameters, chemical composition, and bombard with celestial bodies to witness the development of diverse planetary environments, including the emergence of life. Save your creations and share breathtaking moments.
- Create unique exoplanets
- Adjust orbital and chemical parameters
- Simulate meteorite bombardments
- Witness planet evolution and life development
- In-depth planet stats
- In-game screenshot feature
- Time control for observation
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Pet Rock 2 makes planetary science beautiful and accessible. Start with a simple rock in space; end with a completely unique exoplanet. Choose your star type, adjust the parameters of your planet's orbit and chemical makeup, or bombard it with meteorites and see what happens! Watch your planet grow and change--and if the conditions are right, watch as it develops life. Make gas giants with crushing atmospheres and a dozen moons, a tidally-locked ice planet, densely populated terrestrial worlds, and more. It's all up to you! ___________________________________________________ Features: -- Science! -- Hundreds of different randomly generated planets and planet features -- In-depth planet stats screen for the space buffs -- Rain down comets, meteors, and giant asteroids to give your planet life-- and take it away. -- In-game screenshot feature lets you capture breathtaking moments to keep or share -- Slow down time or speed it up to observe your planet's orbit -- Save planets so you can return to your perfect world at any time _______________________________________________________
Screenshots
Verdict
The clearest difference is rating: Planet simulation at 3.9 against Pet Rock 2's 3.4. Planet simulation also leads on monetization model (ad-supported vs paid) and review sentiment (74% vs 50%). Pet Rock 2's advantage is ads (none vs shown) and update cadence (every 10 days vs every 8 months). On price, 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 48 respectively. Written reviews point the same way: 74% of Planet simulation's written reviews are positive against 50% of Pet Rock 2's.
Planet simulation ships an update every 8 months, Pet Rock 2 every 10 days. Both last shipped on October 22, 2026.
| Parameter | Planet simulation | Pet Rock 2 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (165 ratings) — better | 3.4 (48 ratings) |
| Positive reviews | 74.3% of reviews — better | 50.0% of reviews |
| Number of ratings | 165 — better | 48 |
| Update frequency | Every 8 months | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 6.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 350 MB |
| Age rating | 4+ | 4+ |
| Developer | DAN-BALL | Explorasaurus Studios Inc. |
Customer experience
Planet simulation
Pet Rock 2
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
Pet Rock 2
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Planet simulation
No in-app purchases
Pet Rock 2
No in-app purchases
Questions
Is Planet simulation free?
Is Pet Rock 2 free?
Which has better reviews, Planet simulation or Pet Rock 2?
Do Planet simulation or Pet Rock 2 have ads?
Which is updated more often, Planet simulation or Pet Rock 2?
Other comparisons
