250+ iOS apps curated and reviewed
The best dive calculator apps on iPhone average 4.3★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.6★ (24) | No | Yes | May 2026 | |
| 2 |  | Free | 4.9★ (46K) | No | No | Sep 2026 | |
| 3 |  | Free | 3.1★ (7) | No | Yes | Aug 2026 | |
| 4 |  | Free | 4.8★ (845) | No | No | Sep 2026 | |
| 5 |  | Free | 2.3★ (4) | No | No | May 2026 | |
| 6 |  | Free | — | No | No | Jul 2026 | |
| 7 |  | Free | 4.6★ (93) | No | Yes | Aug 2026 | |
| 8 |  | Free | 5.0★ (1) | No | Yes | Sep 2026 |
This app provides comprehensive scuba diving calculations, including basic, nitrox, and trimix gas mixes. It supports both metric and imperial units, and allows for gas volume and cost calculations for blending and top-ups. Results can be easily copied for documentation.
This app provides comprehensive scuba diving resources, allowing users to learn, log dives offline, verify certifications, and discover new adventures. Stay connected with the diving community and book your next underwater experience.
Plan technical and recreational scuba dives with detailed gas management, decompression schedules, and contingency planning. This tool helps divers quickly create and share dive plans for various depths and conditions.
