My Koi is less of a game and more of a digital sanctuary. In an era of high-stress mobile titles, this app offers a breath of fresh air with its focus on serenity and growth. The level of customization for each fish—from scale patterns to size—is impressive, making your virtual pond feel truly personal. Watching your koi grow over days and weeks provides a quiet sense of accomplishment.
The water physics and ambient sounds are incredibly realistic, creating a genuinely relaxing atmosphere. The 'Ambient Mode' is a standout feature, allowing you to use the app as a background nature soundscape while you work or sleep. It’s a beautiful, polished experience that succeeds perfectly in its goal: providing a peaceful escape from the real world. Worth every cent for the peace of mind it brings.
Dinsun here. Calling this a 'game' is a bit of a stretch, but as a relaxation tool, it’s competent. I don't usually go for these 'Zen' experiences—I prefer something I can actually win—but I can appreciate the craft that went into the water effects and fish AI. It’s nice to look at, and the sound design is actually quite soothing after a long day of work.
However, there is almost zero 'gameplay' here. You tap to feed, you wait, you look at the fish. If you’re expecting a deep simulation like SimCity or even a tamagotchi with complex needs, you’ll be disappointed. It’s an interactive aquarium. For $2 or $3, it's fine for what it is, but don't expect it to hold your attention for more than a few days.
Performance: Demands some GPU power for the water effects but stays very stable.
Buy if: You want a peaceful, high-quality virtual pond to look at on your phone.
Skip if: You want a game with objectives, challenges, or depth.
Available on: iPhone, iPad, iPod
Version 2.5.2Tue May 19 2026
Added a 4th pond - Available once you have unlocked all spaces and breeds.
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.
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"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
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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
Requires iOS 15.6 or later. Compatible with iPhone, iPad, and iPod touch.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










My Koi is a premium, relaxing simulation that lets you manage your own beautiful fish pond. With highly realistic water effects and soothing nature sounds, the app provides a serene escape. You can customize the scales and patterns of up to 54 unique fish across three different ponds, naming each one and tracking their growth over time. Interact with your koi by feeding them and watching them react to your touch. Whether you want to manage a thriving pond or just need a peaceful 'Ambient Mode' for relaxation, My Koi offers a stunningly detailed underwater world.
Realistic water physics and ripples
54 unique customizable fish
Interactive feeding and touch
Peaceful Ambient Mode
Day/Night cycles and weather
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You can change the environment of your pond, including rocks, plants, and water color. Tap the water to create dynamic ripples and watch your fish swim toward your touch or the food you provide.
Yes, your koi grow over time. You can track their length and age stats directly in the fish menu.