# MarimoSimulator vs Pasterium C

The clearest difference is in-app purchases: MarimoSimulator at none against Pasterium C's 1. MarimoSimulator also leads on device support (3 vs 1). Pasterium C's advantage is ads (none vs shown) and update cadence (every 6 days vs every 3 weeks). On price and iOS requirement there is nothing between them.

Both are free to download. Pasterium C sells 1 one-off in-app purchase. MarimoSimulator asks for nothing beyond the download.

MarimoSimulator ships an update every 3 weeks, Pasterium C every 6 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | MarimoSimulator | Pasterium C |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/marimosimulator/id6503089573/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Ad-supported | — |
| Size | 289 MB | 19 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Takuma Takahashi](https://appshunter.io/developer/1704744113) | [KENICHI TAKAOKA](https://appshunter.io/developer/6804616082) |

## What reviewers say

### MarimoSimulator

[App page](https://appshunter.io/ios/app/marimosimulator/id6503089573)

Experience daily relaxation by raising fluffy, cute marimo. Enjoy visual effects by switching lights and soothing music. This simple idle game is perfect for killing time and finding peace.

**Highlights:** Idle marimo breeding, Relaxing gameplay, Visual light effects, Soothing music, Simple controls, Tank cleaning mechanic

**Features:** macOS Compatibility

**In-app purchases:** none


### Pasterium C

[App page](https://appshunter.io/ios/app/pasterium-c/id6817622470)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Study with a Bookshelf | $2.99 | one-time |


## Frequently asked questions

### Is MarimoSimulator free?

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

### Is Pasterium C free?

Pasterium C is free to download, with in-app purchases available.

### Do MarimoSimulator or Pasterium C have ads?

MarimoSimulator shows ads; Pasterium C does not.

### Which is updated more often, MarimoSimulator or Pasterium C?

MarimoSimulator ships an update every 3 weeks, and Pasterium C every 6 days. Most recently, MarimoSimulator was updated on October 24, 2026 and Pasterium C on October 24, 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.*