39°33.4′N · 002°37.8′E

Your companion on the boat.

Engine on, sails up, the wind at the watch change, a spoken note. Sharmionics captures the essentials in a tap, so the rest of the day belongs to the water.

Join the TestFlight beta See a week aboard
Free beta for iPhone & iPad · English & Deutsch
For charter skippers and their crews

Sailing is the point. The logbook should take seconds.

Sharmionics handles the paperwork, the checklists and the log quietly in the background, works with no signal, and stays out of the way until you need it.

Under way

One hand, wet, in motion.

Two buttons do most of the work: Engine on/off and Sails up/down. They are 56 points across, so you can hit them with a thumb while holding on with the other hand.

The wind, at each watch

One tap records what it is blowing. That is all the app needs to count your hours above 5 Beaufort.

Speak the log

Press, say what happened, confirm. Timestamped and positioned from the moment you started talking, recognised on the phone with no signal.

It notices, you decide

“You have started moving, open a leg?” Start tracking once at the beginning of the charter; after that the app proposes and you confirm.

Sharmionics showing a Törn under way in the Balearics, with miles under sail and under motor
A week aboard

From the booking
to the last mooring.

Each part of a charter week has its own jobs. The app brings up the right ones at the right time.

01
At home

Before you leave

Photograph the charter booking and the app reads the boat, the base, check-in, and the deposit you will be asked for at the desk. Add your crew once from their passports, and they are there next season too.

02
At the base

Handover day

Getting under way walks you through the afternoon in order: crew, radio identity, log and tanks, provisioning, the safety briefing, and who does what in an emergency.

03
At sea

Under way

Engine, sails, wind, a spoken note. Charts with seamarks, a distress call already filled in, and your position clearly marked when the fix is getting old.

04
At anchor

Each evening

A short daily round: bilges, oil, coolant, lights, batteries, diesel and water. The app spots that you have stopped near a marina and asks; you tell it whether you are anchored or on a mooring.

05
Back home

Afterwards

A ship's log with the track plotted, a crew list, your papers in one charter pack, GPX and CSV, and the Fahrtennachweis if you need it.

The Getting under way checklist for handover day
Handover day, in order
Offline chart with seamarks and the weather forecast
Chart & weather

Works with no signal at all.

50cruising grounds
10,000harbours
0bars of signal needed
Close at hand

Ready for the moment nobody can fill in a form.

Distress call, pre-filled

MAYDAY, PAN PAN and MEDICO with the boat's name, call sign, MMSI read as digits, position, souls on board and hull colour.

Notrollen

Fire, flooding, abandoning ship: named duties against named people, on a page you can print and pin at the chart table.

Charts, offline

Vector charts with OpenSeaMap seamarks and optional depth shading. A built-in coastline when there is no signal. Carry official charts too.

MAYDAY MAYDAY MAYDAY MAYDAY · this is sailing yacht SEA SWALLOW · MMSI 2 6 9 1 2 3 4 5 6 · my position 39°33.4′N 002°37.8′E · 6 persons on board · white hull
The Mileage screen: 270 of 1000 nautical miles counted, 5 of 18 days at sea
Fahrtennachweis
Balearen · Palma — Palma · 7 Tage
EtappeSegel smMotor sm> 5 Bft h
Palma → Andratx18.44.20
Andratx → Sóller27.93.16
Sóller → Pollença31.22.69
Pollença → Ciutadella24.06.83
Total101.516.718
Für CCS Bern
Your miles, counted

Working towards the Hochseeausweis? It adds up as you sail.

Because engine, sails and wind were recorded at the time, the app knows your miles under sail and under motor, and your hours above 5 Beaufort. The mileage screen shows where you stand against the qualification, and the Fahrtennachweis comes out in German, laid out for CCS in Bern.

Sail / motor
split per leg
> 5 Bft
hours, observed

If something was not recorded, the app says so rather than guessing. A logbook that guesses is worse than one with a gap in it.

Private by default

Your papers stay on your phone.

No account needed

Everything works on the device, offline, from the moment you install it.

Sign in only for backup and iPad

A link sent to your email. There is no password.

Encrypted, read on the phone

Passports, licences and certificates are encrypted on the device and recognised there. Nothing goes to a cloud service to be read.

Less time on the phone. More time sailing.

Join the TestFlight beta
iPhone & iPad · English · Deutsch · Free during the beta
  1. Install Apple's free TestFlight app on your iPhone or iPad.
  2. Open the beta link above on that device and tap Accept.
  3. Install Sharmionics from TestFlight. Updates arrive there too.