My Koi Downloads & RevenueMy Koi · App Store
My Koi is #98 in Games › Family Paid in Japan and charting in 2 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperSakana Studios
CategoryGames
Price2.99 USD
Released
Rating★ 4.9 (218)
Version2.5.2
Age rating4+
First seen by us
24 Sep 2026
24 Sep 2026Installs (est.)10k+ worldwide
⭐Passed 100 ratings⭐Passed 100 ratings📈Entered the top 100📈Charting in a new country🆕First spotted by AppInsider📦Version 2.5.2🆕Released on the App Store
Full timeline · 18 events
- 📈My Koi entered the top 100Top Paid · Family · DE
- 📈My Koi charting in a new countryGermany
- 📈My Koi charting in a new countryThailand
- 📈My Koi charting in a new countryTaiwan
- 📈My Koi entered the top 100Top Paid · Family · JP
- 📈My Koi entered the top 100Top Paid · Family · US
- 📈My Koi charting in a new countryUnited States
- 📈My Koi charting in a new countryJapan
- 🆕My Koi first spotted by AppInsider#81 in Top Paid · Family · Indonesia
- 📦My Koi version 2.5.2Added a 4th pond - Available once you have unlocked all spaces and breeds.
- 🆕My Koi 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
4.9 ★
218 ratings
Measured
Best rank now
#98
Games › Family PaidMeasured
My Koi at a glance
AI summary written from our chart and store data. It can be wrong: check the numbers above.
Simulation Realistic Modern short sessions Premium
#relaxing #pets #aquarium #customization #idle #nature
My Koi on the App Store
App details
App ID
1086523345
Publisher
Sakana Studios Pty Ltd
On the store since
May 2016
10 years on the store
Minimum OS
iOS 15.6+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
149 MB
Also listed in
Family, Entertainment, Simulation
My Koi downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | Games › FamilyPaid | #98 |
| Indonesia | Games › FamilyPaid | #93 |
Apps near My Koi on the chart
Games › Family Paid, around #98.
Ratings
App Store, worldwide.
Rating
4.9 ★
218 ratings
Measured
Ratings
218
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.8★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Games apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about My Koi
From the 50 most recent App Store reviews in the US.
Mostly positive (96% of recent reviews give 4–5 stars). People like it for being fun, and good value. The main complaints are about speed and performance.
What people like
- Fun: “I just wanted a way to relax”
- Price & subscription: “It’s WAY over with the money”
- Design: “It has beautiful scenes and nature sounds or music”
- Features & content: “Really like the underwater feature”
Common complaints
- Speed & performance: “This game is constantly freezing and lagging”
About My Koi
My Koi, number 1 hit on the Mac App Store (Games), is a beautiful and relaxing fish pond app. Customise and name each fish. Feed them daily. Watch them grow. Collect new fish. Escape and relax.
COLLECT. GROW. NURTURE. ESCAPE.
*********
"Love it love it love it - I can't keep my self from checking on them every 3 to 4 hours ... This relaxes me at work." 5 stars. - Raulito1991, USA
"This was truly my best purchase on the AppStore so far, amazing graphics and gameplay and brilliant for helping me relax" 5 stars - Joes826482, UK
"The best game ever!!!! - I went into the App Store a few days ago looking for a old koi game I used to play. I instead ended with this and I love it! Worth every cent, this game is so fun. " 5 Stars. - Blenore, USA
"This app is so beautiful. I love relaxing and watching my koi. I feel like I have koi without all the upkeep. This has quickly become my favorite app!!!" 5 stars.- Jamelith, USA
"First of all you don’t deserve 5 stars you deserve more because this game is just amazing thank you for an amazing game that so life like keep up the good work" - 5 stars. Florida 696, USA
" If you are seeking out a serene experience, then look no further than My Koi". - Appaddict.net
**********
With My Koi you can
* Add up to 18 unique fish to each pond. Change their scales and patterns. No two fish are alike so everyone's experience will be different
* Multiple ponds so you can collect more fish. Manage up to 54 fish across 3 ponds.
* Customise the pond environment including rocks, plants, substrate and water colour
* Unlock more fish slots and new varieties once milestones have been reached
* View and track each fish underwater
* Feed your fish and watch them swim to food
* See your fish grow over time and see their growth stats
* Name each fish
* Tap them and watch them swim away
* View fish happiness levels which will change depending on how much they are fed
* The time of day will change as you play effecting sound and light
* Enjoy ambient mode (with just the sounds)
* Bring the pond to your lounge room via AirPlay and Apple TV
* Enjoy the calming atmosphere and beauty of your own private koi pond whilst listening to the relaxing sounds of nature
So, download My Koi now to escape and relax with your own private underwater oasis.
My Koi has no in-app purchases or advertising.
Suitable Platforms:
Any 64bit iOS device
COLLECT. GROW. NURTURE. ESCAPE.
*********
"Love it love it love it - I can't keep my self from checking on them every 3 to 4 hours ... This relaxes me at work." 5 stars. - Raulito1991, USA
"This was truly my best purchase on the AppStore so far, amazing graphics and gameplay and brilliant for helping me relax" 5 stars - Joes826482, UK
"The best game ever!!!! - I went into the App Store a few days ago looking for a old koi game I used to play. I instead ended with this and I love it! Worth every cent, this game is so fun. " 5 Stars. - Blenore, USA
"This app is so beautiful. I love relaxing and watching my koi. I feel like I have koi without all the upkeep. This has quickly become my favorite app!!!" 5 stars.- Jamelith, USA
"First of all you don’t deserve 5 stars you deserve more because this game is just amazing thank you for an amazing game that so life like keep up the good work" - 5 stars. Florida 696, USA
" If you are seeking out a serene experience, then look no further than My Koi". - Appaddict.net
**********
With My Koi you can
* Add up to 18 unique fish to each pond. Change their scales and patterns. No two fish are alike so everyone's experience will be different
* Multiple ponds so you can collect more fish. Manage up to 54 fish across 3 ponds.
* Customise the pond environment including rocks, plants, substrate and water colour
* Unlock more fish slots and new varieties once milestones have been reached
* View and track each fish underwater
* Feed your fish and watch them swim to food
* See your fish grow over time and see their growth stats
* Name each fish
* Tap them and watch them swim away
* View fish happiness levels which will change depending on how much they are fed
* The time of day will change as you play effecting sound and light
* Enjoy ambient mode (with just the sounds)
* Bring the pond to your lounge room via AirPlay and Apple TV
* Enjoy the calming atmosphere and beauty of your own private koi pond whilst listening to the relaxing sounds of nature
So, download My Koi now to escape and relax with your own private underwater oasis.
My Koi has no in-app purchases or advertising.
Suitable Platforms:
Any 64bit iOS device
Latest updates
2.5.2
Added a 4th pond - Available once you have unlocked all spaces and breeds.