The Marimo vs MarimoSimulator
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
The Marimo
Care for a virtual green ball creature that grows over time. Keep its environment clean and provide light to ensure its survival. Customize its appearance and interact with it through various gestures.
- Virtual pet care
- Growth simulation
- Environment maintenance
- Customization options
- Interactive controls
- Social sharing
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Thank you 1,130,000 download!! [About Marimo] Marimo means a plant like a green ball which grow in Hokkaido, Japan. You can raise a Marimo. A marimo will grow up little by little every day. When water become dirty, you need to refresh water. If you don't take care of a Marimo long time, Marimo will wither. [Other Features] - You can rename Marimo, and change background. - Drag to move Marimo. - Double tap to pick tap Marimo. - Rotate marimo with two finger. - Marimo moves by the direction of the device. - You can upload image of Marimo on Twitter/Facebook. - Photosynthesis occurs in a bright place.
MarimoSimulator
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.
- Idle marimo breeding
- Relaxing gameplay
- Visual light effects
- Soothing music
- Simple controls
- Tank cleaning mechanic
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Easy Idle Breeding Game with Simple Controls ■ Purpose of the App ■ Experience daily relaxation by raising fluffy and cute marimo. Enjoy interesting visual effects by switching the lights. With beautiful graphics and soothing music that make you feel like you're raising marimo in a tank, forget your daily stress and spend peaceful moments. Unlike raising pets, the breeding elements are simple and easy!! Perfect for killing time! Raise marimo and feel the relaxation in your daily life. ■ How to Care for Marimo ■ Caring for marimo is easy. Clean the tank once every 4 days
Screenshots
Verdict
The clearest difference is rating: MarimoSimulator at 5.0 against The Marimo's 4.4. MarimoSimulator also leads on update cadence (every 3 weeks vs every 3 months). The Marimo's advantage is ratings volume (16 vs 1). 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.
MarimoSimulator holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: The Marimo has 16 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of The Marimo's written reviews are positive against 83% of MarimoSimulator's.
The Marimo ships an update every 3 months, MarimoSimulator every 3 weeks. The most recent releases landed on September 22, 2026 and September 9, 2026 respectively.
| Parameter | The Marimo | MarimoSimulator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (16 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 79.6% of reviews | 83.3% of reviews — better |
| Number of ratings | 16 — better | 1 |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 289 MB |
| Age rating | 4+ | 4+ |
| Developer | Kosuke Ogawa | Takuma Takahashi |
Customer experience
The Marimo
MarimoSimulator
In-app purchases
The Marimo
No in-app purchases
MarimoSimulator
No in-app purchases
Questions
Is The Marimo free?
Is MarimoSimulator free?
Which has better reviews, The Marimo or MarimoSimulator?
Do The Marimo or MarimoSimulator have ads?
Which is updated more often, The Marimo or MarimoSimulator?
Other comparisons
