The log

Every dive, kept properly.

A logbook that does the dive justice: the depth profile drawn as a clean trace, with your gas, kit and buddies beside it, all readable at a glance. Never a spreadsheet.

Get the app Bring your history

The full logbook is free, forever, on your device. No account.

The record

More than a depth and a time.

Drag the profile to inspect any moment of the dive. Temperature, tank pressure and ppO₂ ride alongside the trace, told apart by weight, dash and label rather than colour alone. Underneath sits everything else that made the dive: the mix, the rig, the buddies, the conditions, the photos.

Air, nitrox and trimix, with start and end pressures per cylinder
Up to eight photos a dive, straight from your camera roll
Buddies, site, water type, visibility, weights, suit, notes, rating. Chips, not free text

Photo studio Plus

Your best shots, colour restored.

Point it at your dive footage and it finds the sharp, well-framed moments, then brings back the colour the water swallowed. Reds and greens return, the haze lifts, and the keepers drop straight onto the dive. It all happens on your device, nothing uploaded.

A diver hovering over a sunlit reef in clear blue water, colour restored from dive footage

Two divers swimming through a rock arch in bright sunlit water

A diver in a red drysuit trailing bubbles over a wreck, the reds brought back

A diver with a torch inside a wreck, pink coral around the opening

An underwater statue on the seabed with a diver behind, in clear blue water

Divers with bright yellow fins over the reef, sharp and well framed

Real stills, auto-selected and colour-corrected on-device. Part of Plus.

Bring your history

Download from your computer. Import your old logbook.

Pull your dives straight off the computer over Bluetooth on iPhone, iPad and Android: Shearwater, Suunto, Scubapro, Mares, Oceanic, Aqualung, Cressi and hundreds more, through the same open libdivecomputer engine Subsurface uses. On the desktop, download cable-connected computers over USB and serial. Years of dives somewhere else? Import them and carry on where you left off, numbering intact.

Download over Bluetooth from Shearwater, Suunto, Scubapro, Mares, Oceanic, Aqualung, Cressi and hundreds more, on iPhone, iPad and Android
Import from UDDF, Subsurface, CSV and Garmin FIT
Export the whole log again as UDDF or CSV, any time

Your diving hub: your last dive, this year's diving, and quick links to your kit, sites and buddies, on a dashboard you arrange

Places

Sites, mapped and remembered.

Every dive pinned on a world map that works offline. Download the chart for the regions you dive so it is all there with no signal, and a site book keeps count: how often you’ve been down, and how long you stayed.

The dive map: dives clustered on an offline world map

In detail

What the log records.

Profile tracks

Depth, temperature, tank pressure and ppO₂, told apart by weight, dash and label. Never colour alone.

Per dive

Site, date, conditions, water type, visibility, current, weights, suit, notes, rating, buddies.

Gas

Air, nitrox and full trimix; multiple cylinders and stages, with start and end pressures.

Photos

Up to eight per dive from your camera roll, plus the photo studio to pick and colour-correct them. Location data is stripped automatically when a dive is shared. Plus

Numbering

Automatic by date, or set a dive's number by hand. Renumber the whole log from any start, or drag to reorder.

Units

Metric or imperial, your choice. Stored precisely, converted only at the surface. Your units, theme and preferences sync across devices on Pro.

In & out

Import UDDF, Subsurface, CSV, Garmin FIT; export UDDF and CSV. Your data is never held hostage.

Start logging properly.

The full logbook is free forever, kept on your device, no account required. The planner is one tap away when you need it.

Get the app Next: the planner