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.




202+ iOS apps curated and reviewed
Out of 202+ scuba dive signals apps on iOS, 18 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 | 4.4★ (4.6K) | No | Yes | Sep 2026 | ||
| 4 | Free | 4.8★ (845) | No | No | Sep 2026 | ||
| 5 | Free | 4.9★ (46K) | No | No | Sep 2026 | ||
| 6 | Free | 4.7★ (2.6K) | No | Yes | Sep 2026 | ||
| 7 | Free | 4.8★ (8.3K) | No | No | Sep 2026 | ||
| 8 | Free | 4.5★ (297) | No | Yes | Sep 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.






Transform your Apple Watch Ultra into a comprehensive dive computer for scuba, freediving, and snorkeling. Explore new locations with heatmaps, track your routes, organize underwater media, and share your adventures securely. Plan dives, monitor real-time data, and stay safe with advanced algorithms.