Idle Cosmo Maker vs Gemstone Tree
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Idle Cosmo Maker
Build and expand your own universe by creating galaxies and populating them with planets. Upgrade your celestial bodies to generate passive income and unlock new cosmic wonders. Enjoy endless hours of space-themed farming with offline rewards.
- Build and expand galaxies
- Populate with upgradeable planets
- Generate passive income (Star Dust)
- Unlock new planets and galaxies
- Rechargeable boosters
- Offline reward system
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Idle Cosmos Maker: Galaxy Space offers you the chance to build entire galaxies, populate them with planets, raise those planets and extend across the universe. As you play and expand your cosmos, you will unlock new planets, galaxies and upgrade your boosters for maximum performance. Playing the game is really easy: buy your planets, upgrade them and unlock new ones! Every planet has a passive income depending on it's level but you can always boost your Star Dust by clicking them or activating some boosters! Go up in level to unlock new planets, galaxies and endless hours of fun farming. Features: - Ten Galaxies ready to be developed. - Tens of planets that can be upgraded and developed to farm Star Dust. - Rechargable boosters for rush farming. - Level based progression with XP earned for every action you take. - OFFLINE reward system! Your planets don't stop producing Star Dust when you go to sleep, so collect all your income when you wake up.
Gemstone Tree
Cultivate a magical gemstone tree to generate precious jewels and unlock a miniature world. This relaxing idle game allows you to simply watch your tree grow and discover the unfolding universe beneath it.
- Grow a gemstone tree
- Earn jewels
- Expand a new world
- Healing idle gameplay
- Discover a miniature universe
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Discover a mysterious gemstone tree and the tiny little world which unfolds beneath it. Grow your tree to earn jewels and expand a whole new world. In a corner of the great wide universe lies a beautiful green planet home to a mysterious tree with the power to create jewels. Just sit back and relax as you watch your lovely gemstone tree grow in this healing idle game.
Screenshots
Verdict
The clearest difference is update cadence: Idle Cosmo Maker at every 2 weeks against Gemstone Tree's every 8 months. Idle Cosmo Maker also leads on iOS requirement (10.0 vs 14.0). Gemstone Tree's advantage is rating (3.9 vs 3.7) and ratings volume (17 vs 3). On price, review sentiment, ads and in-app purchases 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.
Gemstone Tree holds the better App Store score, 3.9 against 3.7. That said, the two scores are not equally well evidenced: Gemstone Tree has 17 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 50% of Idle Cosmo Maker's written reviews are positive against 43% of Gemstone Tree's, so the app with the better star average is not the one people write more warmly about.
Idle Cosmo Maker ships an update every 2 weeks, Gemstone Tree every 8 months. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.
| Parameter | Idle Cosmo Maker | Gemstone Tree |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 3.9 (17 ratings) — better |
| Positive reviews | 50.0% of reviews — better | 42.9% of reviews |
| Number of ratings | 3 | 17 — better |
| Update frequency | Every 2 weeks — better | Every 8 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 242 MB | 71 MB |
| Age rating | 4+ | 9+ |
| Developer | ARTIFICIAL INTELLIGENCE RESEARCH LAB LTD | GlobalGear Co. Ltd. |
Customer experience
Idle Cosmo Maker
Gemstone Tree
In-app purchases
Idle Cosmo Maker
No in-app purchases
Gemstone Tree
No in-app purchases
Questions
Is Idle Cosmo Maker free?
Is Gemstone Tree free?
Which has better reviews, Idle Cosmo Maker or Gemstone Tree?
Do Idle Cosmo Maker or Gemstone Tree have ads?
Which is updated more often, Idle Cosmo Maker or Gemstone Tree?
Other comparisons
