248+ iOS apps & games curated and reviewed
With an average user rating of 4.5★, the koi fish game category is one of the App Store's strongest. Browse all 248+ apps and games we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (30K) | Yes | Yes | Aug 2026 |
| 2 |  | Free | 4.7★ (2.1K) | Yes | Yes | Aug 2026 |
| 3 |  | Free | 3.3★ (294) | No | Yes | Aug 2026 |
| 4 |  | Free | — | No | No | May 2026 |
| 5 |  | Free | 4.5★ (18K) | Yes | No | Aug 2026 |
| 6 |  | Free | 4.2★ (35) | Yes | No | Aug 2026 |
| 7 |  | Free | 4.5★ (348) | Yes | Yes | Aug 2026 |
| 8 |  | Free | 4.7★ (16K) | Yes | Yes | Aug 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.
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.
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.
Become a predator in a vibrant underwater world. Hunt for smaller fish to grow and survive, while avoiding larger predators. Experience a relaxing yet engaging fishing adventure.
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.
Create and manage your own virtual aquarium with realistic 3D fish. Buy, breed, and sell a variety of species, customize your tanks with decorations, and enjoy a lifelike aquatic experience.
Lead a school of fish to grow by collecting others and swallowing opponents. Upgrade your fish to become the largest and rule the underwater kingdom. Engage in survival challenges and mini-games.
Experience realistic 3D fishing with intuitive motion controls. Explore famous fishing spots, catch over 100 species of fish, and compete with friends in thrilling duels. Upgrade your gear and discover hidden treasures for a relaxing yet rewarding gaming 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.
Embark on a relaxing fishing adventure with serene visuals and calming music. Discover and collect a variety of fish across different destinations, upgrade your boat, and expand your island for new gameplay experiences. This game offers a meditative escape for your day.
A simple, touch-based game where players collect fish. It's designed for short bursts of play, offering a fantastic experience in just 10 minutes. Perfect for casual gaming sessions.
Control a baby shark in a vibrant aquarium, hunting smaller fish and avoiding predators. Eat sushi to boost your power and collect fish heads to dominate the sea and become king. Engage in thrilling io gameplay against players worldwide.
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.
Create and manage your own virtual aquarium empire. Choose from over 200 exotic 3D fish and sharks, and customize your underwater environments with more than 85 decorations. Buy, breed, and sell fish to earn coins and unlock new content.
Breed and care for over 400 species of virtual fish to solve a genetic puzzle and discover legendary magic fish. Manage your aquarium business, customize tanks, and progress in real-time.
An idle, relaxing game designed to relieve stress and calm the mind. Expand your aquarium, invite adorable fish friends, and enjoy a peaceful experience. Watch your underwater world grow and feel your worries melt away.
Lead your school of fish to victory in this underwater battle. Collect fish, grow your team, and swallow opponents to become the largest school. Explore the abyss, challenge sharks, and play mini-games.
Engage in thrilling underwater battles with a variety of fish characters and powerful special abilities. Compete with up to four players to catch the most fish and multiply your wins. Experience high-quality 3D graphics and immersive undersea themes.