My Koi vs Koitopia
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
My Koi
Create and nurture your own virtual koi pond. Customize fish, environments, and watch them grow. This relaxing app offers a serene escape with beautiful graphics and calming sounds.
- 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
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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
Koitopia
Breed and grow unique Koi varieties in a virtual pond. Complete quests, solve puzzles, and customize your environment. Showcase your prized fish in this relaxing 3D simulation game.
- Koi breeding mechanics
- Pond customization
- Daily quests and puzzles
- Event-based challenges
- Mini-games (Feed the Fish, Catch the Food)
- Ornamental Pond showcase
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Koitopia is a captivating mobile game that immerses you in the world of Koi. Begin your journey with a starter pond filled with Koi and explore genetics and breeding mechanics to create unique and vibrant Koi varieties. Engage in daily quests, solve puzzles, progress through levels, and participate in event-based challenges to earn KOIns, experience, and resources. Customize your ponds, participate in mini-games like Feed the Fish and Catch the Food, and showcase your best Koi in the Ornamental Pond. Experience a semi-realistic 3D art style with portrait orientation gameplay, powered by the Unity Engine. Whether you're a casual gamer or an aspiring breeder, Koitopia offers a relaxing and rewarding experience as you nurture and grow your Koi collection.
Screenshots
Verdict
The clearest difference is review sentiment: My Koi at 95% against Koitopia's 47%. My Koi also leads on rating (4.9 vs 2.1) and in-app purchases (none vs 5). Koitopia's advantage is price (Free vs $2.99) and update cadence (every 5 weeks vs every 3 months). On ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Koitopia is free to download; My Koi costs $2.99 up front. Koitopia sells 5 one-off in-app purchases. My Koi asks for nothing beyond the download.
My Koi holds the better App Store score, 4.9 against 2.1. That said, the two scores are not equally well evidenced: My Koi has 218 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 95% of My Koi's written reviews are positive against 47% of Koitopia's.
My Koi ships an update every 3 months, Koitopia every 5 weeks. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.
| Parameter | My Koi | Koitopia |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.9 (218 ratings) — better | 2.1 (16 ratings) |
| Positive reviews | 95.3% of reviews — better | 47.1% of reviews |
| Number of ratings | 218 — better | 16 |
| Update frequency | Every 3 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 142 MB | 352 MB |
| Age rating | 4+ | 4+ |
| Developer | Sakana Studios | Homeworx Consulting Pty Ltd |
Customer experience
My Koi
Koitopia
Bugs and requests
My Koi
Reported bugs
2 issues- Fish getting stuck or unable to move
- Inconsistent fish growth rates or weight issues
Requested features
5 requests- 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
Koitopia
Not enough reviews yet to summarise bugs or requests.
In-app purchases
My Koi
No in-app purchases
Koitopia
- Water Koi Fortune Pack$0.99
- Koi Spring Bundle$4.99
- Koi Ripples Cache$9.99
Show 2 moreShow fewer
- Koi Tranquility Collection$24.99
- Koi Floating World Trove$79.99









