Vessel tracking, AR scanning of ships on the horizon, anchor alarms on your Watch, crowdsourced SOS, and a private tender network — all in one app built for the people who actually use it.
Six features that matter when you are actually on the water — not on a sales deck.
Point your iPhone at the horizon. See the name, flag, course and ETA of any ship in view. Live AIS, augmented reality, no waiting.
Dual-frequency L1+L5 GPS detects drag down to 3 meters. Your Apple Watch wakes you up — not the whole boat.
If you press SOS, every Sirena vessel within 5 miles gets a critical alert. Help arrives from the nearest boat — not the coast.
Watch your tenders, jet skis and seabobs in real time from the bridge. Live ETA back to the mothership.
Pre-loaded offline charts. GPS keeps working in the middle of the ocean. Your family sees your route once you reach shore.
Disable public AIS legally, keep tracking private to your inner circle. End-to-end encrypted family network — no paparazzi, no stalkers.
The app is free with offline charts. Live data unlocks per trip — or with a yearly plan.
We open early access in waves. Founding subscribers get 50% off the first year — for life.
We will email you when the app launches. No spam, ever. Founding subscribers get launch-day priority.