250+ iOS apps curated and reviewed
Finding the right nautilus lifeline apps can be overwhelming with so many options. We've analyzed 250+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 1.9★ (12) | No | No | May 2026 |
| 2 |  | Free | — | No | No | May 2026 |
| 3 |  | Free | — | Yes | Yes | Aug 2026 |
| 4 |  | Free | — | Yes | Yes | Aug 2026 |
| 5 |  | Free | 5.0★ (1) | No | No | May 2026 |
| 6 |  | Free | — | No | No | May 2026 |
| 7 |  | Free | — | No | Yes | Aug 2026 |
| 8 |  | Free | 5.0★ (1) | No | No | Aug 2026 |
This utility app uses your iPhone's camera flash to program a unique MMSI number into a compatible marine rescue GPS device. This allows the device to send Man Overboard and emergency distress signals via AIS and DSC.
This maritime safety app provides instant access to global rescue coordination centers and features tools for generating distress messages and planning voyages. It offers real-time location tracking for man overboard situations and works offline, ensuring safety at sea.
This app provides immediate assistance in emergencies by displaying the correct local emergency number and your GPS coordinates. It can guide you through first aid steps and alert nearby rescue drones or local rescue services.
Navigate the outdoors with a digital compass that conserves battery. Save locations and get guided back to them with a simple arrow. Ideal for travelers, hikers, sailors, and geocachers who venture off the beaten path.
This app provides essential calculators and timers for marine search and rescue missions. It features tools for sector and expanding square searches, speed-distance-time calculations, and latitude/longitude lookups. The app also includes a search log and night mode for enhanced usability.
This application transforms your smartphone into a man overboard alarm system. It detects a lost connection to a paired beacon and alerts you with an audible alarm and GPS coordinates for quick recovery. It also provides navigation back to the incident location.
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.
This app facilitates rapid SMS emergency alerts to a Crisis Response Center. It preloads messages with location data and enables two-way communication for rescue coordination. Users can quickly send SOS alerts and cancel them with a few taps.
Get a clear go/no-go verdict for spearfishing and freediving with consolidated sea conditions. Predicts water visibility, tides, swell, wind, and temperature for over 1,100 coastal cities.
This app provides divers with essential safety tools and resources. It includes an SOS button, emergency hotline access, GPS sharing, and emergency guidelines. It's designed for DAN Members and new members to enhance diving safety.
This app provides real-time location sharing and safety features for families. It offers automatic notifications for arrivals, departures, and emergencies, along with optional 24/7 dispatch services for urgent situations. Track school buses, vehicles, and personal items for enhanced peace of mind.
Access digital training materials, certifications, and a digital logbook for various diving disciplines. Track dive progress, manage gear, and earn ratings. Connect with dive centers and stay updated on industry news and events.
Enhance your fishing trips by wirelessly connecting your mobile device to a portable sonar unit. Visualize fish and underwater structures in real-time, with options for traditional sonar or ice fishing modes. Create custom maps and mark your favorite fishing spots for easier returns.
