# atom.sim vs Grolo

The clearest difference is update cadence: atom.sim at every 6 weeks against Grolo's every 3 months. Grolo's advantage is iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

atom.sim ships an update every 6 weeks, Grolo every 3 months. The most recent releases landed on October 24, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | atom.sim | Grolo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | — | Free |
| Size | 79 MB | 28 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Hans Kovi](https://appshunter.io/developer/1493527465) | [FURIM Institutt](https://appshunter.io/developer/1380019309) |

## What reviewers say

### atom.sim

[App page](https://appshunter.io/ios/app/atomsim/id1493527466)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Grolo

[App page](https://appshunter.io/ios/app/grolo/id6447375585)

Cultivate a virtual garden, learning about organic farming and plant care. Engage in a gamified experience with real-time growth stages, and discover the health benefits of each plant. Earn points and climb the ranks in this educational and entertaining simulation.

**Highlights:** Virtual plant cultivation, Real-time growth stages, Simulated plant care (sunlight, water, soil), Pest and disease management, Learn plant health benefits, Gamified scoring and ranking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is atom.sim free?

atom.sim is free to download, with no in-app purchases.

### Is Grolo free?

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

### Do atom.sim or Grolo have ads?

Neither atom.sim nor Grolo shows ads.

### Which is updated more often, atom.sim or Grolo?

atom.sim ships an update every 6 weeks, and Grolo every 3 months. Most recently, atom.sim was updated on October 24, 2026 and Grolo on November 3, 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.*