249+ iOS apps & games curated and reviewed
Finding the right koi fish apps and games can be overwhelming with so many options. We've analyzed 249+ apps and games to bring you the best choices for 2026, from free options to premium solutions with advanced features.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (30K) | Yes | Yes | Aug 2026 |
| 2 |  | Free | 3.3★ (294) | No | Yes | Aug 2026 |
| 3 |  | Free | 4.7★ (2.1K) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 3.3★ (25) | Yes | No | May 2026 |
| 5 |  | Free | 4.0★ (8) | Yes | No | Jul 2026 |
| 6 |  | Free | 4.1★ (28) | Yes | No | Jul 2026 |
| 7 |  | Free | — | No | Yes | Jul 2026 |
| 8 |  | Free | — | No | No | May 2026 |
Nurture and breed vibrant koi, guiding them through a serene journey to transform into majestic dragons. Customize your underwater sanctuary and create unique constellations in a breathtaking celestial realm.
Cultivate a vibrant aquatic ecosystem by raising, feeding, and breeding thousands of unique koi. Decorate your pond, interact with your fish, and explore friends' creations. Discover new koi through fishing and enjoy a serene, ad-free experience.
Nurture and collect vibrant Koi fish in a serene underwater world. Watch them grow, evolve into majestic dragons, and discover hundreds of unique varieties. Share your collection with friends and enjoy a calming, visually stunning experience.
Discover, collect, and breed beautiful koi fish to populate your virtual pond in this relaxing idle game. Progress through hundreds of levels and enjoy stress-free sounds for a calming experience.
Design and maintain your own virtual koi pond. Care for your fish, customize the environment, and enjoy a peaceful, interactive aquarium experience.
Observe and interact with beautiful koi and goldfish in a virtual aquarium. Increase their favorability, collect more fish, and unlock new views. Enjoy a relaxing experience with optional in-game currency for faster progression.
Discover and purchase live Japanese koi directly from Japan through live stream sales. Request specific varieties and see actual fish before buying. The app ensures safe, professional shipping across the United States.
Create and manage your own vibrant 3D aquariums filled with a vast array of marine life. Buy, breed, and sell fish to expand your collection, customize your tanks with decorations, and enjoy realistic fish behavior and interactions.
Immerse yourself in a tranquil digital koi pond. Interact with beautiful fish, customize your environment with various backgrounds and flora, and enjoy a rich selection of natural soundscapes for a stress-relieving and uplifting experience.
This premium, single-player game offers a serene escape with mesmerizing koi breeding and collection. Enjoy tranquil gameplay, enchanting music, and a visually stunning experience without ads or in-app purchases. Perfect for relaxation and mindful breaks.
Collect coins to feed adorable Koi carps and watch them grow. Navigate obstacles, customize your pond, and unlock premium Koi varieties. A relaxing game of growth and collection.
Digitally manage your koi population and pond water quality. Track fish growth, calculate optimal feeding amounts, and monitor water parameters with automated analysis and suggestions. View trends with generated charts and manage multiple ponds.
