Koi Downloads & RevenueKoi - Aquarium · App Store
Not in any tracked top chart right now.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperHAREPPO
CategoryGames
PriceFree
Released
Rating★ 4.8 (8)
Version1.0.4
Age rating12+
First seen by us
12 Oct 2026
Full timeline · 3 events in the last 12 months
- 🆕Koi - Aquarium first spotted by AppInsiderChina (found via developer)
- 🆕Koi - Aquarium: its developer released another app: Bingo3x3: Fast Party Games
- 🆕Koi - Aquarium released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.8 ★
8 ratings
Measured
Koi - Aquarium on the App Store
App details
App ID
1558420605
Publisher
HAREPPO
On the store since
Apr 2021
5 years on the store
Minimum OS
iOS 12.0+
iPhone 5s and later
Devices
iPhone · iPad
Universal purchase
Content rating
12+
3 content notes below
Languages
8
CA EN FR DE JA KO ZH ES
Size
133 MB
Also listed in
Simulation, Graphics & Design, Word
Content notesInfrequent/Mild Cartoon or Fantasy ViolenceInfrequent/Mild Sexual Content and NudityInfrequent/Mild Realistic Violence
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.8 ★
8 ratings
Measured
Ratings
8
Measured
About Koi - Aquarium
* How to play
There are no difficult elements, basically you just look at the beautiful carp and goldfish.
Move your point of view and observe the carp and goldfish from various angles.
* How to increase carp and goldfish?
Tap to increase the favorability of carp and goldfish, and you can also purchase the number of carp and goldfish by exchanging favorability for diamonds (in-game currency) at the shop.
You can also get diamonds by watching mini games and advertisements, so please use it.
There are no difficult elements, basically you just look at the beautiful carp and goldfish.
Move your point of view and observe the carp and goldfish from various angles.
* How to increase carp and goldfish?
Tap to increase the favorability of carp and goldfish, and you can also purchase the number of carp and goldfish by exchanging favorability for diamonds (in-game currency) at the shop.
You can also get diamonds by watching mini games and advertisements, so please use it.
Latest updates
1.0.4
fix bugs.