238+ iOS apps & games curated and reviewed
Idle Aquarium is the household name in fish aquarium idle, but it's far from the only option. We track 238+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (4.9K) | Yes | Yes | Aug 2026 |
| 2 |  | Free | — | No | No | Jul 2026 |
| 3 |  | Free | 4.0★ (7) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 4.8★ (191) | Yes | Yes | Jul 2026 |
| 5 |  | Free | — | No | No | May 2026 |
| 6 |  | Free | 2.3★ (3) | No | No | May 2026 |
| 7 |  | Free | — | Yes | Yes | Jul 2026 |
| 8 |  | Free | 4.7★ (911) | Yes | Yes | Jul 2026 |
Build and manage a thriving aquarium, attracting visitors and collecting diverse aquatic life. Upgrade exhibits, research marine species, and expand your facilities to earn money and become a wealthy aquarium tycoon.
Embark on a relaxing fishing journey, collecting diverse fish species across beautiful pixel art worlds. Manage and upgrade your gear and boats to maximize your catch and profits. Customize your own aquariums to showcase your discoveries and create a tranquil underwater haven.
Build and manage a global aquarium business empire. Earn money, invest wisely, and automate your workflow to become an idle tycoon. Enjoy a fun minigame to catch special fish and treasures.
Create and manage a tranquil underwater paradise. Collect exotic fish, expand your tanks, and enjoy relaxing gameplay that continues even when you're offline. Earn rewards and build your aquatic empire.
Build and manage your own underwater world by creating a diverse aquarium. Feed your fish, attract visitors, and expand your park with various sea creatures to become an aquarium tycoon.
Build a fabulous aquarium by feeding fish to earn gold and diamonds. This idle game offers an epic experience with multiple maps to explore and expand your underwater world.
Discover and collect various fish species to expand your underwater world. Earn money even when offline to purchase new habitats and unlock more aquatic life. Enjoy mini-games and explore battle arenas in different water environments.
This app helps aquarium owners plan their tanks and avoid common mistakes. It checks fish compatibility and tank stocking levels, offering information on over 1000 fish species. You can save and share your aquarium setups.
Build and manage a vibrant underwater world, collecting over 70 unique fish in stunning 3D. Engage in interactive fishing, battle other fish with special attacks, and play fun minigames to earn rewards. Decorate your tank and raise legendary creatures for a relaxing aquarium adventure.
Design and populate your own virtual fish tanks with a variety of decorations and fish. Earn rewards by caring for your aquatic life and completing daily challenges to expand your underwater world.
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.
Nurture a vibrant aquarium filled with unique fish. Upgrade your aquatic companions, utilize powerful boosters to accelerate growth, and complete daily tasks to earn rewards. Enjoy a relaxing and visually stunning underwater experience.
Create and manage a virtual aquarium, raising fish from babies to adults. Your care determines their survival and happiness, with options to name, color, and even dress them up. Enjoy a charming simulation with unique 2D graphics.
Create and decorate a tranquil aquarium filled with adorable sea creatures. This idle game offers a relaxing escape with simple tap controls, classical music, and engaging episodes. Grow your underwater world at your own pace.
Build and manage a vibrant underwater empire by collecting and nurturing adorable fish. Customize colorful aquariums, engage in exciting fish battles with unique weapons, and earn idle income to expand your business and become a fish farming tycoon.