204+ iOS apps & games curated and reviewed
The best ocean blue fish apps on iPhone average 4.4★ across 204+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
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.
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.
Control a growing aquatic creature, starting as a small fish and evolving into larger predators. Consume everything in your path to increase your size and unlock new playable characters with unique origins and abilities. Experience an ocean of endless consumption and growth.
Build your own dream undersea world by collecting and evolving hundreds of unique fish. Explore different seas, decorate your ocean environment, and complete challenging tasks. Visit friends' seas, trade fish, and discover hidden treasures.
Create and customize your own vibrant underwater world with a vast array of fish, sea creatures, and decorations. Raise and breed exotic fish, discover new species, and connect with a community of fellow aquarium enthusiasts through chat and gifting.
Lead a school of fish to survive in a dangerous ocean. Grow your group, collect eggs, and discover new species while avoiding predators. Enjoy vibrant graphics and engaging missions.
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.
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.
Embark on a relaxing fishing adventure across 12 diverse worlds. Catch hundreds of unique fish species, including rare elemental variants, and build your dream aquarium collection. Compete with friends on leaderboards and upgrade your gear to reel in the biggest catches.
Engage in a thrilling multiplayer arena as a shark with a sword. Hunt other fish, collect trophies, and consume sushi to grow stronger. Dominate the ocean and become the king of the sea in this free-to-play IO game.
Instantly identify fish species using your camera and access up-to-date local fishing regulations. Track your catches, log important fishing data, and store your licenses digitally. Premium features offer advanced identification, weather, and expert advice.
Care for a vibrant ocean reef and collect hundreds of sea creatures. Discover new species, learn facts about marine life, and decorate your sanctuary. Participate in special events and connect with friends to build thriving underwater worlds.
Explore a vast 3D ocean as a predator fish, hunting, fighting, and even starting a family. This game offers an immersive underwater adventure with simple controls and a variety of activities.
Embark on an underwater adventure as a small fish, eating to grow larger and stronger. Explore vibrant ocean depths, evolve your character, and survive against predators. This offline game offers simple controls and stunning graphics for a relaxing yet engaging experience.
Instantly identify fish species by taking or uploading a photo. Access a vast database with detailed information and helpful tips for fish keeping. Connect with a community for shared knowledge and insights.
Navigate a deep ocean environment, tapping to steer your diver through numerous obstacles. Enjoy this free game experience with simple, intuitive controls.
Transform your device into a stunning, dynamic aquarium with high-definition ocean scenes. Enjoy relaxing ambient sounds or play your own music. Features include a sleep timer and flashlight, perfect for background ambiance.
Experience a vibrant, interactive 3D aquarium on your device. Watch realistic fish swim, interact with them by touching the screen, and even download new species. Personalize your aquarium with custom backgrounds from your photo library.