About this app
Let's grow the healing creature "Marimo"! You who discovered a rare "marimo" floating on the water. Please take good care of it and grow it big! * How to play If you leave the water dirty, Marimo will die. Let's change the water! Tap Marimo to increase the intimacy of Marimo. The higher the intimacy, the faster the marimo grows. * Caution Please note that if you delete the app, the play data will also be deleted.
Latest release
What’s New
- Added support for App Tracking Transparency - Updated Google Mobile Ads to v9.14.0 Thank you for your continued support of "Marimo".
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 18, 2026 · 4:45 PM Free
Screenshots
