Nautis
Your sea time.
Logged as you sail.
Nautis records your passages, works out your miles, night hours and days on board, and exports them in RYA logbook format.
Every detail, in its place.
Course and speed, wind and gusts, barometric pressure, sea state, the sails you set, the engine hours. Every field a proper logbook asks for, ready the moment you need to write it down.
- SOG
- COG
- STW
- Heading
- DTW
- Wind
- Gust
- Wind dir
- Pressure
- Visibility
- Sea state
- Sail plan
- Engine
- RPM
- Battery
- Notes
- Photos
And room for the note. The squall that came through, the watch handover, the dolphins off the bow. The part you actually go back and read.
Your sea time, in RYA G73 format.
Every trip becomes a logbook in the RYA's own G73 format: miles run, days aboard, your capacity on board, tidal or non-tidal, and the night hours worked out for you from the sun. Export it as a branded PDF or a CSV.
| Time | Lat | Lon | Hdg ° | SOG kn | COG ° | Wind kn | Gust kn | WDir ° | Baro hPa | Sea | Sails | Note | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 31 Aug 08:00 | 36°08.2′N | 005°21.4′W | 075 | 5.6 | 078 | 12 | 15 | 250 | 1019 | Slight | Main + Genoa | Slipped lines, Gibraltar. Motoring east out of the bay. |
| 2 | 31 Aug 12:00 | 36°11.0′N | 004°48.0′W | 070 | 6.5 | 072 | 16 | 21 | 245 | 1018 | Moderate | Main + Genoa | SW breeze filled in. Engine off, sailing. |
| 3 | 31 Aug 16:00 | 36°18.0′N | 004°05.0′W | 066 | 7.1 | 068 | 18 | 24 | 240 | 1016 | Moderate | 1st reef + Genoa | Reefed main, breeze building. Good progress. |
| 4 | 31 Aug 20:00 | 36°24.0′N | 003°28.0′W | 064 | 6.6 | 067 | 20 | 24 | 235 | 1015 | Rough | 1st reef + Genoa | Sunset. Wind F6. Watch handover to Sarah. |
| 5 | 01 Sep 00:00 | 36°33.0′N | 002°50.0′W | 062 | 6.2 | 065 | 19 | 23 | 240 | 1015 | Rough | 1st reef + Genoa | Night passage. Stars gone, steady rain. |
| 6 | 01 Sep 04:00 | 36°41.0′N | 002°10.0′W | 060 | 6.4 | 063 | 17 | 21 | 245 | 1016 | Moderate | Main + Genoa | Shook out reef before dawn. Calmer. |
| 7 | 01 Sep 08:00 | 36°50.0′N | 001°28.0′W | 058 | 6.9 | 060 | 15 | 19 | 250 | 1018 | Moderate | Main + Genoa | Watch handover. Coffee on. Dolphins off the bow. |
| 8 | 01 Sep 12:00 | 37°02.0′N | 000°45.0′W | 056 | 7.2 | 058 | 14 | 18 | 255 | 1019 | Slight | Main + Genoa | Glorious sailing. Open Med, NW breeze. |
See how close you are to Yachtmaster.
Nautis keeps the running totals for you: miles, days at sea, days as skipper, night hours and passages over 60 miles. Export your Personal Logbook and it sets them against the RYA's sea-time requirements for Yachtmaster Coastal and Yachtmaster Offshore, so you know what's left before you book the exam.
Yachtmaster Coastal
All met- Days at sea 32 / 30
- Days as skipper 8 / 2
- Miles 1,512.2 / 800
- Night hours 149.7 / 12
Yachtmaster Offshore
In progress- Days at sea 32 / 50
- Days as skipper 8 / 5
- Miles 1,512.2 / 2,500
- Passages over 60 NM 11 / 5Overnight 10 / 2 · as skipper 5 / 2
- Miles in tidal water 100% / 50%
The passage records itself.
Your position tracks the whole way. Speed, course and pressure read straight off the phone. And at the interval you set, Nautis records these on its own. The miles and the readings are captured while you sail, not after.
Works with no signal.
Every entry saves to your phone the moment you write it, signal or not. The cloud is only a backup, a way to reach your other devices, and how you share a trip with friends or On Watch. You never lose your sea time, even mid-ocean.
Your trip, shared live.
The live trip page opens in any browser. No app, no account. Your route draws itself across the map as you sail, and every entry appears as you write it.
See how On Watch worksStart your trip.
Open Nautis and start a trip the way you always do.
Share the link.
One tap turns the trip into a link. Send it to anyone: partner, parents, the crew who stayed ashore.
They sail alongside you.
They open it in any browser and follow the whole passage, live, until you're in.
Follow your crew.
Add the people you sail with and follow their passages. See the trip they're on right now, or look back through the ones they've already logged.
The water, right now.
Open the Radar and see every Nautis sailor out on the water. Their tracks draw live across the map, and the logs they write appear as they go.
Nautis is almost here.
It's free, on iOS and Android. Leave your email and we'll tell you the day it's out.
Run an RYA training centre or sailing school? Get in touch and we'll get it into your students' hands.