248+ iOS apps curated and reviewed
Looking for free reef tank apps? 20 of our 248+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (1) | No | Yes | Sep 2026 | |
| 2 |  | Free | 4.8★ (451) | Yes | Yes | Oct 2026 | |
| 3 |  | Free | 1.0★ (1) | No | Yes | Sep 2026 | |
| 4 |  | Free | — | No | Yes | Oct 2026 | |
| 5 |  | Free | — | Yes | Yes | Oct 2026 | |
| 6 |  | Free | — | No | No | Sep 2026 | |
| 7 |  | Free | 1.0★ (4) | No | No | Sep 2026 | |
| 8 |  | Free | — | No | Yes | Aug 2026 |
This offline logbook helps reef tank enthusiasts meticulously track water parameters, equipment maintenance, and livestock. It offers detailed logging for various parameters and test kits, with advanced features like dosing intelligence and coral growth timelines available through a one-time purchase.
Manage your saltwater aquarium with this app. Track water parameters, log inhabitants, and get task reminders. Connect with a community of hobbyists, explore a marketplace, and access guides for a thriving reef tank.
This app helps reef tank enthusiasts monitor water chemistry, coral health, and equipment maintenance with on-device AI. It provides detailed parameter tracking, coral health analysis, and automated reminders for a healthier, more manageable aquarium.
