Access a comprehensive list of underwater hand signals for safe scuba diving communication. Includes a quiz feature to test your knowledge of signals recognized by major training agencies.




247+ iOS apps curated and reviewed
Out of 247+ scuba dive signals apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 5.0★ (3) | No | No | Sep 2026 | ||
| 2 | $2.99 | 4.0★ (5) | No | No | Aug 2026 | ||
| 3 | Free | 4.8★ (845) | No | No | Sep 2026 | ||
| 4 | Free | — | No | Yes | Aug 2026 | ||
| 5 | Free | — | No | Yes | Aug 2026 | ||
| 6 | Free | — | No | Yes | Oct 2026 | ||
| 7 | Free | — | No | No | Aug 2026 | ||
| 8 | Free | — | No | Yes | Oct 2026 |




Access a comprehensive list of underwater hand signals for safe scuba diving communication. Includes a quiz feature to test your knowledge of signals recognized by major training agencies.





Master underwater communication with a comprehensive guide to over 240 scuba diving hand signals. Learn common, emergency, and wildlife signals with illustrations and animal facts. Track your progress and test your knowledge with an integrated quiz.






This app serves as a comprehensive diving logbook and planning tool. It automatically records dive data, tracks gas consumption, and supports various diving disciplines. Users can also discover dive sites, manage gear, and share experiences with a community.