# Idle Cosmo Maker vs Gemstone Tree

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.

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.

## The numbers

| Metric | Idle Cosmo Maker | Gemstone Tree |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/idle-cosmo-maker-galaxy-space/id1565396112/reviews) | **[3.9 (17 ratings)](https://appshunter.io/ios/app/gemstone-tree/id6448081708/reviews)** |
| Number of ratings | 3 | **17** |
| Positive reviews | **50.0% of reviews** | 42.9% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 2 weeks** | Every 8 months |
| Monetization | Ad-supported | Ad-supported |
| Size | 242 MB | 71 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [ARTIFICIAL INTELLIGENCE RESEARCH LAB LTD](https://appshunter.io/developer/1521935880) | [GlobalGear Co. Ltd.](https://appshunter.io/developer/670168140) |

## What reviewers say

### Idle Cosmo Maker

[App page](https://appshunter.io/ios/app/idle-cosmo-maker-galaxy-space/id1565396112)

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.

**Highlights:** Build and expand galaxies, Populate with upgradeable planets, Generate passive income (Star Dust), Unlock new planets and galaxies, Rechargeable boosters, Offline reward system

**Features:** macOS Compatibility

**In-app purchases:** none


### Gemstone Tree

[App page](https://appshunter.io/ios/app/gemstone-tree/id6448081708)

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.

**Highlights:** Grow a gemstone tree, Earn jewels, Expand a new world, Healing idle gameplay, Discover a miniature universe

**In-app purchases:** none


## Frequently asked questions

### Is Idle Cosmo Maker free?

Idle Cosmo Maker is free to download, with no in-app purchases.

### Is Gemstone Tree free?

Gemstone Tree is free to download, with no in-app purchases.

### Which has better reviews, Idle Cosmo Maker or Gemstone Tree?

Gemstone Tree is rated higher. Idle Cosmo Maker averages 3.7 out of 5 from 3 ratings, while Gemstone Tree averages 3.9 from 17 ratings.

### Do Idle Cosmo Maker or Gemstone Tree have ads?

Both Idle Cosmo Maker and Gemstone Tree show ads.

### Which is updated more often, Idle Cosmo Maker or Gemstone Tree?

Idle Cosmo Maker ships an update every 2 weeks, and Gemstone Tree every 8 months. Most recently, Idle Cosmo Maker was updated on October 19, 2026 and Gemstone Tree on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*