marimo vs MarimoSimulator
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
marimo
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.
- Virtual Marimo pet
- Water changing gameplay
- Marimo growth simulation
- Share progress on Twitter
- Hokkaido souvenir theme
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Marimo-chan is an application to grow the "Marimo" on the iPhone. Inhabit Lake Akan in Hokkaido, can be observed / breeding on the iPhone the "Marimo" very popular as a souvenir of Hokkaido. Is a very simple system. Basically all you have to do change water. When Marimo grow large then Let's boast to your friends on twitter
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 ads: marimo at none against MarimoSimulator's shown. marimo also leads on review sentiment (98% vs 83%) and monetization model (free vs ad-supported). MarimoSimulator's advantage is update cadence (every 3 weeks vs every 4 months). On price, in-app purchases and device support 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.
marimo ships an update every 4 months, MarimoSimulator every 3 weeks. The most recent releases landed on October 5, 2026 and September 26, 2026 respectively.
| Parameter | marimo | MarimoSimulator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 98.0% of reviews — better | 83.3% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 31 MB | 289 MB |
| Age rating | 4+ | 4+ |
| Developer | HANA-DA Hiromitsu | Takuma Takahashi |
Customer experience
marimo
MarimoSimulator
In-app purchases
marimo
No in-app purchases
MarimoSimulator
No in-app purchases
Questions
Is marimo free?
Is MarimoSimulator free?
Do marimo or MarimoSimulator have ads?
Which is updated more often, marimo or MarimoSimulator?
Other comparisons
