# marimo vs メダカ育成げーむ

The clearest difference is review sentiment: marimo at 98% against メダカ育成げーむ's 52%. marimo also leads on ads (none vs shown) and iOS requirement (9.0 vs 15.0). On price, update cadence, 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.

marimo ships an update every 4 months, メダカ育成げーむ every 3 months. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | marimo | メダカ育成げーむ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (17 ratings)](https://appshunter.io/ios/app/id1100508229/reviews)** |
| Number of ratings | — | **17** |
| Positive reviews | **98.0% of reviews** | 52.4% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 31 MB | 76 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [HANA-DA Hiromitsu](https://appshunter.io/developer/392896308) | [Canvas soft](https://appshunter.io/developer/670507890) |

## What reviewers say

### marimo

[App page](https://appshunter.io/ios/app/marimo/id392896305)

A virtual pet simulation where you nurture a Marimo, a unique aquatic plant from Hokkaido. The core gameplay involves changing its water to help it grow. You can then share your Marimo's progress with friends.

**Highlights:** Virtual Marimo pet, Water changing gameplay, Marimo growth simulation, Share progress on Twitter, Hokkaido souvenir theme

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

**In-app purchases:** none


### メダカ育成げーむ

[App page](https://appshunter.io/ios/app/id1100508229)

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

**In-app purchases:** none


## Frequently asked questions

### Is marimo free?

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

### Is メダカ育成げーむ free?

メダカ育成げーむ is free to download, with no in-app purchases.

### Do marimo or メダカ育成げーむ have ads?

メダカ育成げーむ shows ads; marimo does not.

### Which is updated more often, marimo or メダカ育成げーむ?

marimo ships an update every 4 months, and メダカ育成げーむ every 3 months. Most recently, marimo was updated on October 14, 2026 and メダカ育成げーむ on October 8, 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.*