235+ iOS apps & games curated and reviewed
The best koi fish aquarium apps and games on iPhone average 4.5★ across 235+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 3.9★ (12) | Yes | No | Oct 2026 | |
| 2 |  | Free | 4.2★ (15) | Yes | No | Oct 2026 | |
| 3 |  | Free | 4.3★ (36) | Yes | No | Oct 2026 | |
| 4 |  | Free | 4.2★ (14K) | No | Yes | Oct 2026 | |
| 5 |  | Free | 4.6★ (3.6K) | No | Yes | Oct 2026 | |
| 6 |  | Free | — | — | No | Jul 2026 | |
| 7 |  | Free | 4.6★ (9.6K) | Yes | Yes | Oct 2026 | |
| 8 |  | Free | — | No | Yes | Sep 2026 |
Create and interact with a tranquil virtual koi pond. Feed your fish, customize the scenery, and enjoy a peaceful, visually engaging experience designed for relaxation.
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.
