# My Koi — Your personal underwater oasis > Virtual koi pond simulation with customization, growth tracking, and relaxing ambiance. (iPhone/iPad app by Sakana Studios.) - Source: https://appshunter.io/ios/app/my-koi/id1086523345 (this page in markdown: same URL + `.md`) - Developer: [Sakana Studios](https://appshunter.io/developer/1086523344) - Category: Games, Entertainment, Family, Simulation - Price: $2.99 - Rating: 4.90/5 from 218 App Store ratings · 193 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 142 MB - Languages: American English - Released: 2016-05-04 - Data updated: 2026-09-06 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/my-koi/id1086523345/reviews.md ## What is 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 ## Key features - Customize fish scales and patterns - Manage multiple ponds and fish - Decorate pond environment - Unlock new fish varieties - Track fish growth and happiness - Experience changing time of day - Enjoy ambient soundscapes ## 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 ## Recent user reviews (10 of 193) All indexed reviews: https://appshunter.io/ios/app/my-koi/id1086523345/reviews.md ### 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 ### 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 ### 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 ### 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 ### 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. ## Frequently asked questions about My Koi ### What is My Koi? My Koi is a virtual fish pond application that allows users to create, customize, and nurture their own koi pond. You can add and name fish, change their appearance, decorate the pond environment, and watch your fish grow over time. It's designed to be a relaxing and beautiful escape. ### What are the key features of My Koi? Key features include the ability to customize up to 18 unique fish per pond with different scales and patterns, manage up to 54 fish across three ponds, decorate the pond environment with rocks, plants, and substrate, unlock new fish varieties, track fish growth and happiness levels, and experience a changing time of day with ambient sounds. ### How much does My Koi cost? My Koi is a paid application. The description states that it has no in-app purchases or advertising, indicating a one-time purchase price for the full experience. ### What devices is My Koi compatible with? My Koi is suitable for any 64-bit iOS device. It also supports AirPlay and Apple TV, allowing you to bring the pond experience to your lounge room. ### What is the main purpose of My Koi? The main purpose of My Koi is to provide users with a beautiful and relaxing virtual underwater oasis. It's designed for users to escape, relax, and enjoy the calming atmosphere and beauty of their own private koi pond without the upkeep of a real one. ## Version history (last 5 releases) ### 2.5.2 — 2026-05-19 Added a 4th pond - Available once you have unlocked all spaces and breeds. ### 2.4.0 — 2024-04-14 -New interactive water, multi-touch dynamic ripples -Multi-touch underwater bubbles -60 FPS option in settings -Random decoration positions -Bug Fixes and Improvements ### 2.3.4 — 2021-03-09 ·        Bug fixes and improvements. ### 2.3.3 — 2020-12-18 Bug fixes and improvements. ### 2.3.2 — 2020-11-05 • Replaced Skull Koi with Ghost Koi • Bug fixes / improvements ## Apps similar to My Koi | App | Rating | Price | Category | | --- | --- | --- | --- | | [Zen Koi Classic](https://appshunter.io/ios/app/zen-koi-classic/id896575207) | 4.7 (2,054) | Free | Games | | [Splash — Fish Aquarium](https://appshunter.io/ios/app/splash-fish-aquarium/id960080321) | 4.7 (6,345) | Free | Games | | [Fish Farm 3 - Aquarium](https://appshunter.io/ios/app/fish-farm-3-aquarium/id1196055246) | 4.6 (6,555) | Free | Games | | [Fish Tycoon 2 Virtual Aquarium](https://appshunter.io/ios/app/fish-tycoon-2-virtual-aquarium/id1194725957) | 4.2 (3,819) | Free | Games | | [Paradise - Fish Aquarium](https://appshunter.io/ios/app/paradise-fish-aquarium/id1166830239) | 4.6 (3,532) | Free | Games | | [Tap Tap Fish - AbyssRium](https://appshunter.io/ios/app/tap-tap-fish-abyssrium/id1068366937) | 4.5 (24,168) | Free | Games | ## Related topics [koi ledbanner](https://appshunter.io/ios/topics/koi-ledbanner) --- *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.*