# My Koi — user reviews

> 193 indexed App Store user reviews of My Koi by Sakana Studios, rated 4.90/5 from 218 ratings.

- Source: https://appshunter.io/ios/app/my-koi/id1086523345/reviews
- App overview in markdown: https://appshunter.io/ios/app/my-koi/id1086523345.md
- Rating breakdown: 5★ 197 · 4★ 16 · 3★ 1 · 2★ 2 · 1★ 2

## What do users think of My Koi?

Overall sentiment: positive

**Pros**

- 🌟 Stunning graphics and realistic fish animations
- 🕹️ Intuitive and easy-to-use interface
- 🕰️ Relaxing ambient sounds and weather effects
- 🐟 Satisfying fish growth and customization
- 💰 Fair pricing with no in-app purchases

**Cons**

- 🔋 Battery drain issues on some devices
- 🐛 Occasional freezing or crashing during fish creation
- 🔍 Limited customization options for the pond environment

**Commonly reported bugs**

- Fish getting stuck or unable to move
- Inconsistent fish growth rates or weight issues

**Most requested features**

- Breeding and baby fish mechanics
- Ability to move fish between ponds
- More diverse fish species (e.g., goldfish, butterfly koi)
- Expanded pond decoration options (waterfalls, structures, etc.)
- Multiplayer or social features to share ponds

## Newest reviews (17 of 193)

### 5/5 — 🐟

*2025-05-08, version 2.4.0*

Currently enjoying feeding my fish.

### 5/5 — Not a game experience

*2025-02-27, version 2.4.0*

I wasn’t sure about this at first. I was afraid it was going to be a game where I had to earn coins to do some challenge. I just wanted a way to relax. I have other fish tank apps that allow me to just watch which I used all the time. But this is way better because I get to watch them and interact with them. The only “game” type activity is that if you ignore them for a few days the pond gets dirty. But all I have to do is feed them and it’s better. Graphics aren’t life like but pretty close. None of the fish are cheesy looking. It has beautiful scenes and nature sounds or music. Wonderful way to relax.

### 5/5 — “好美哟，好喜欢～”

*2025-01-11, version 2.4.0*

喜欢这里有树 有桩 
有电 有雷 有雨 有鱼 
有石 有蝶 有草 有叶 
唯独

没有人

为什么要有人 
人又是什么东西
黄鼠狼下鼠豆子
多一只少一只
又有什么关系

### 5/5 — Un étang dans ma poche

*2025-01-01*

Un très bon moment de détente.
Les poissons sont très réaliste, c est excellent.

**Developer response:** Merci beaucoup pour cette excellente critique, très appréciée, Andy (le développeur)

### 5/5 — This needs to be more known

*2024-11-10, version 2.4.0*

It realistic still to mobile standards so good job and it so peaceful just to look at and even if you left them to long (me:/) it goes to blue in a matter of seconds for me idk why

### 5/5 — This needs to be more known

*2024-10-15*

It realistic still to mobile standards so good job

### 5/5 — Really GOOD GAMEEEEEE!!!!

*2024-09-07, version 2.4.0*

Good game but could you add 2 more ponds sorry if it’s lots of work and can you add some more tipes of koi Please thank you if you do have a good day or night! :) Thank you Developer if you read this :) 💜

### 5/5 — Serene and relaxing

*2024-08-05, version 2.4.0*

I love this koi pond app. I like to have it going while I’m working, with noise-cancelling headphones, it makes for a very tranquil mood. Glad to see the devs are keeping it updated as well, and we all appreciate that!
My only concern is that after a while, like maybe 20 minutes or so, I do notice my phone is quite warm. I’m running an iPhone 15 Pro, so I’m on a new device. I imagine it’s just the amount of processing power it uses, so I wanted to call that out in case that’s something that could be worked on for a future update. 
Thank you again, devs! 🖤

### 5/5 — Gioco bellissimo

*2024-07-15*

Credo che questo gioco sia troppo poco conosciuto. È di un realismo e di un relax davvero fantastici, dovrebbe essere più conosciuto un gioco così bello. Gli sviluppatori meritano davvero tanto.

**Developer response:** Grazie mille per la tua fantastica recensione, è molto apprezzata. I migliori saluti, Andy

### 5/5 — Veramente fatto bene

*2024-06-27*

I pesci son belli e fatti molto bene. Ci vuole un po’ per farli crescere ma penso che in definitiva non sia così negativa come cosa. Do 5 stelle sulla fiducia di altri aggiornamenti futuri e magari con altre specie di carpe Bravi! Continuate così 💪💪

**Developer response:** Grazie mille per la tua fantastica recensione, molto apprezzata, i migliori saluti, Andy

### 5/5 — My Favourite Mindfulness Game

*2024-06-25, version 2.4.0*

Running on iPad Air (M2)**

Anyone who loves koi will adore this game. You have so many different koi customization options that it’s very difficult to accidentally make two koi look exactly the same.

The nature soundtrack is sublime. I turned music off so I can really take in the sounds of rain hitting the pound, the waves rippling with every drop. My ears want more. I have the graphics cranked to highest quality without any loss of performance. I think this game would run beautifully on an M1 iPad as well.

What makes me sad though is the only interaction with the koi in the game is to spook them away from you. I’d love if there was a new mechanic that allowed you to tame new koi over time, where they become more friendly with you or recognize you as food momma.

Developer is still updating the game so I’ll be recommending this game to everyone I know!

### 5/5 — Wow 🤩

*2024-06-19, version 2.4.0*

Truly beautiful yet peaceful, and worth every penny, definitely my best purchase on App Store so far!! May I give you some suggestions?! 😅: Butterfly koi added Gender Able to breed/sell koi (mini business?) Looks like pond (border around side/different shapes) Little achievements Credit to developer for making this game incredible and keep up the work! 👍👍👍👍

### 5/5 — beautiful.Just beautiful

*2024-06-11, version 2.4.0*

This is a brilliant game- there’s so so much detail to the point of the time of day and even what kind of scales you want on your fish . All the fish are different and it’s so much fun to see them grow and name them. This is truly the best app purchase I have ever made 🎏

### 5/5 — Just buy it…

*2024-04-22, version 2.4.0*

The price is right for a very relaxing and hyper realistic app.  Lots of thought and work went into this app and continues to get development and attention from the developer.

This is hands down the best aquarium style app I’ve ever experienced and it’s due to only get better.  I keep the app open and running on my iPad next to my Mac and the soothing sounds of water, rain, thunder, and music make for a more delightful work experience.  

Taking a break every hour or so to feed my koi is a pleasant diversion from coding.

To the developer:  Keep up the great work.  You’ve done a stellar job here and I would love to see this continue to get better and better.  With the next upgrade, I’ll be buying the Mac app version too.  Kudos!

### 5/5 — i like it!

*2024-01-19, version 2.3.4*

Good game !But are developers still following the game？the last upadate was 2years ago😭😭😭😢😢

### 5/5 — Best pond game

*2023-09-20, version 2.3.4*

Please update. Love this game and do not want to see it vanish from the store!!!!

### 5/5 — Clam,fun,fish tastic!

*2023-08-29, version 2.3.4*

The moment I saw this game I was like- my dream game yes finally! It has amazing graphics and a clam nature even going into the little details of customisation in your tank (or pond) making it look different I love the way you can customise your fish and have so many in 1 pond! The way you can nurture your fish is just amazing being able to watch them grow and fending them aswell as there happiness! The fish also clean the tank(or pond) for me to! And so far I have not seen a single add! This game deserves to be nominated! Somthing else I will be looking for more games in the future like this one! Yours sincerely-me!

## Most critical reviews (10 lowest-rated)

### 1/5 — バグ？

*2025-12-20*

毎日エサをあげても全く成長しなくなりました。なぜ？

**Developer response:** 問題が発生したとのこと、申し訳ございません。andy@sakanastudios.com までご連絡いただければ、できる限りお手伝いさせていただきます。ありがとうございます。Andy

### 1/5 — Eating my battery and causing phone to run hot

*2023-09-19, version 2.3.4*

In not saying I know why, but I’d say something is suspicious with this app. Suddenly the battery is being drained by Safari and My Koi apps, even when neither is in use. My phone is running hot whether I am using Safari or My Koi. I really enjoyed the Koi. I found them soothing but I deleted the app.

### 1/5 — No offence and nothing personal!

*2019-01-27, version 2.1.1*

Can I have a refund? It’s just I wanted another game, this game is pretty good I just want a refund.

### 1/5 — Constantly freezing

*2019-01-26, version 2.1.1*

This game is constantly freezing and lagging. I can’t even get a pond going. It froze when I added my first fish...right after freezing and restarting during the fish creation process. Having to restart twice within 3 minutes is unacceptable. The description says the iPad Air is compatible but it’s not. Runs terribly. Please fix or give me a refund. Very disappointed.

### 2/5 — もっと自然を取り入れて

*2020-07-20*

生もあれば死もあっていい。
美しい表現だけでなく、自然らしく予期せぬ死があった方がいいと思う。
また、交配により新たな世代に命を継承していくシステムならなお良い。
そこで親の容姿を引き継ぐことや、突然変異のレア種の誕生などあればもっと長く楽しめる。

**Developer response:** あなたのレビューをありがとう、私は時間内にアプリを改善できることを願っています。他に提案がある場合は、andy @ sakanastudios.comまでご連絡ください。私はあなたがすぐにそれをより良い評価を与えることができると思います:)、ありがとう、アンディ

### 3/5 — Nice but could be so much better

*2021-10-06, version 2.3.4*

As far as Koi ponds go this is OK. Having seen koi ponds in Asian countries it would be nice if the app developers could add some extras. For example maybe a Buddha, or pagodas, or an Asian style bridge, or all of those things to give it a really wonderful Buddhist Zen feeling.

### 3/5 — 何か追加して！

*2020-12-30*

鯉がある程度育って全部開放しちゃうと
毎日何もやる事がない。ただ餌をやるだけです。
やっぱり産卵とかして　ブリーディングとがしてみたい。育てた鯉を販売して新しい池を買ったりアイテムを買ったり。　　
鯉の品評会とかあってもいいですね〜。

**Developer response:** フィードバックとレビューをありがとうございます。私は本当にアプリを改善したいと思っています。繁殖と魚の管理の改善は、時間があるときに探求したいものです。今年の新年のある時点でレビュースコアを改善してもらうことができれば幸いです:)、ありがとう、Andy

### 3/5 — Freeze

*2018-07-02, version 1.45*

This game is good but I guess when I’m making a new fish the game will freeze a lot

### 3/5 — Great experience, eating my battery

*2016-05-29, version 1.0*

I love the calm I get after work on the train, escaping to my little pond. Absolutely gorgeous graphics and amazing simplicity. 
At the end of the day though I'll have about 35% of my battery left. I open the app, feed my koi and then literally just over a minute and my battery dies. Further optimisations?

### 4/5 — Wenig Möglichkeiten

*2025-08-26*

Im Großen und Ganzen eine gute App. Jedoch würde ich mir wünschen, das man die Koi z.B vom einen in den anderen Teich verlegen kann.

**Developer response:** Vielen Dank für die Bewertung. Es kommt ein Update mit einem vierten Teich. Ich stimme zu, die Fische brauchen ein besseres Managementsystem. Es gibt tatsächlich eine Möglichkeit, die Fische zwischen Teichen und mehr zu bewegen, mithilfe der iTunes-App und File Sharing. Bitte kontaktieren Sie mich unter andy@sakanastudios.com, wenn Sie eine Anleitung wünschen, obwohl ich weiß, dass das nicht ideal ist :), nochmals vielen Dank, Andy

## Most praised reviews (10 highest-rated)

### 5/5 — すごく綺麗

*2026-05-31*

鯉の動きや水の感じもとてもいいのですが、餌を全然食べない個体が何匹かいるのでもっと積極的に食べる設定にしてほしい

**Developer response:** あなたの親切なレビューをありがとう。 私は将来のアップデートで金魚を追加したいと思います、多くの感謝アンディ

### 5/5 — Excellent stress reliever

*2026-05-20, version 2.5.2*

I’m glad to see the developers are back to work on the app. I love this little app and it help me deal with the stress of the day

### 5/5 — Relaxing and enjoyable-try it! 🎏

*2026-03-17, version 2.4.0*

A well thought out app  with realistic graphics and smooth, fluid animation that mimics fish movement beautifully. You can customize both the koi and each pond. Add plants, logs, water lilies, leaves and even change the water color. 

You get fish immediately and don’t have to pay more for fish or tank extras-just feed the fish to help them grow. The one time app charge is low with no additional charges which is becoming a rarity in the App Store.

You can view the fish from underwater at various levels -even looking up towards the clouds or view from above in  feeding mode. The sounds from nature in addition to the watching the koi swim is very relaxing. It even rains sometimes-also customizable. You can focus on the movement of any koi in the tank by selecting it from the tank list. Wow!

The app takes a second or 2 to switch between ponds and the transition is smooth. Haven’t had any problems with this app. 

This app was created by one person in his spare time-Kudos to the developer.

### 5/5 — Really good, but I think there should be goldfish

*2026-03-14, version 2.4.0*

So I know this game is focused on Koi and stuff, but maybe there could also be a goldfish since they are relatives and also I’m very excited to sealed the goldfish body types that could be added if the developers see this update : I think it would be really cool if you could breed the fish because it already has good models

### 5/5 — Virtual Koi masterpiece

*2025-12-18, version 2.4.0*

Having spent a lot of money on my Koi pond and to then have a wipe out after an electrical Pump and filter failure during very hot weather. This is wonderful Andy I love choosing the colours and watching my Koi grow. It’s a beautiful game to play,  without a doubt one of the best.

### 5/5 — Really good, but I think there should be goldfish

*2025-10-31, version 2.4.0*

So I know this game is focused on Koi and stuff, but maybe there could also be a goldfish since they are relatives and also I’m very excited to sealed the goldfish body types that could be added if the developers see this

### 5/5 — Best mental health app literally ever, wish I could give it 6 or 7 stars

*2025-10-31, version 2.4.0*

Ok so the title is a joke but like it is so peaceful to just sit and watch the fish swim around. Maybe I am too easily entertained but I absolutely love how stress kinda fades into the background when I’m listening to the music/ambience and watching em swim.

This is also just a really well made game. The graphics are soooo pretty, the mechanics are straightforward, and it doesn’t feel like adding more stressful tasks to your day (feeding them is not a hassel at all, and isn’t required every single day). You don’t have to worry about fish dying but you do get to look forward to unlocking more slots as they get bigger! Plus you get to design how they look yourself (the fish and the pond backgrounds!), which is very satisfying and lets me create themed ponds that my weird little brain really enjoys. 

Not to mention, unlike almost every other collecting/caring for pets type game I’ve played, you don’t have to pay a stupid amount of money/grind to progress! Three dollars is a reasonable price, especially since the dev is just one guy in his spare time (or at least that’s what the customer service looks like). We appreciate you buddy, this app is awesome!!

My only qualms are that the first time I open it for the day, it’s really slow to load and I have to exit the app and get back in for it to start up (really not even a problem), and that you can change the time of day for the ponds but there’s no way to automatically sync it to the actual current time of day (which would be cool but again, not really a problem at all). Honestly I only mentioned those things so y’all don’t think I’m a bot 💀💀  Goodness knows how many fake reviews are on the app store rn

### 5/5 — Beautiful and relaxing

*2025-07-22, version 2.4.0*

Great peaceful non-game.  Please note I feed my koi on a daily basis; however, it's been something like a year now and no new breeds available and no more space, as promised.  Has developer abandoned this app?  I hope not.

### 5/5 — こう見えて大のMy Koiフリークです！

*2025-06-24*

ずっと遊んでます！
最近RYUKINを買って技術の進化に驚きました！
My Koiもバージョンアップか新しい魚アプリが出ないかなと思ってます！

バージョンアップありがとう！
金魚もいいけど鯉が好きなので、アップルシリコンを活かした凄い鯉を期待してます！

**Developer response:** レビューいただき誠にありがとうございます。アップデートを開始したばかりです。すぐにさらに改善できることを期待しています。
あなたがシェアしてくれたRYUKINアプリがとても気に入っています。とても刺激を受けました、またありがとう、アンディ

### 5/5 — Fantastic game for whole family

*2025-05-31, version 2.4.0*

Beautiful pond features and there are 3 ponds which means kids and I can have 1 pond each!! Also love it being not overly addictive and just need to feed fish once per day. Well done to the developers! Namo Amituofo

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*
