Jellyfish Tank is made and published by KOICHI HANAMURA. AppBrain is an independent app data site and isn't affiliated with KOICHI HANAMURA. The app name, icon, screenshots and description belong to KOICHI HANAMURA and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- September 18, 2026
- Size
- 2.80 MB
User feedback
Ratings and reviews on the App StoreComments on Jellyfish Tank for iOS
We don't have enough comments to show example comments. Please check back later.
Store listing
By KOICHI HANAMURA, from the App Store
Description by KOICHI HANAMURA Written by the developer, not by AppBrain. Click to read.
Jellyfish drift, glow, and pulse in the dark water. You can simply watch — the tank asks nothing of you.
When you feel like it, care for them: scatter food, clean the water, give them light. Pair two jellies and an egg settles on the rocks. You won't know its color until it grows.
The colors follow an old lexicon — Dew, Madder, Cerulean, Amber, Jade, Coral, Lapis, Aster, Aurora. And on moonless nights, once in a great while, something else.
- No ads in the tank. Watching is never interrupted.
- No subscriptions. No random paid draws.
- Time passes gently even while you're away.
- Your tank follows you to a new device through iCloud.
Raise them slowly. Or just watch the light.
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 2.80 MB
- Content rating
- Everyone
Technologies used by Jellyfish Tank
Releases
Updates seen on the App Store- Version
- 1.4
- Launched
- August 2026
No changelog data
Alternatives
Similar apps and more from KOICHI HANAMURAAlternatives to Jellyfish Tank
Rankings
App Store top chartsApp Store Rankings for Jellyfish Tank
About the app and developer
About Jellyfish Tank
Jellyfish Tank is a games app developed by KOICHI HANAMURA.
User Ratings
The app has no ratings yet.
App Information
Jellyfish Tank is freely available from the App Store. The app size is 2.80 MB. The latest version available is 1.4. The last update was on September 18, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since August 2026.
Developer information for KOICHI HANAMURA
Address: