Frequently asked questions

Diveology is a dive log for scuba divers: every dive with its profile, breathing rate, site, gas, kit and buddies, plus a map of everywhere you have dived and statistics on all of it. It works in any browser now, and a native iPhone app that works offline is on its way.

Yes. Export UDDF or MacDive XML from MacDive, or open your Subsurface logbook file, and Diveology imports every dive with its profile, tanks, sites, buddies and kit. Importing the same file twice adds nothing. See moving from MacDive and moving from Subsurface.

That is coming with the iPhone app: dives recorded by the Watch will appear in your logbook by themselves, ready to check and confirm. See Apple Watch Ultra.

Diveology will be a paid iPhone app, and the online logbook and this website come with it at no extra cost. The price will be announced when the app is released.

Yes. Your dives are only ever yours: no ads, no trackers, nothing sold. Sign-in uses passkeys, so there is no password to steal, and you can export or delete everything whenever you like. See privacy and security.

Today, any computer whose dives you can get into MacDive, Subsurface or another app that exports UDDF, which covers most Shearwater, Suunto, Garmin, Mares, Oceanic and Cressi models. Downloading straight from the computer over Bluetooth is planned for the iPhone app.

Yes. Metric or imperial, and each unit on its own: metres with psi, or feet with bar, whatever you dive with.

Your surface air consumption: how much gas you breathe a minute, corrected to the surface, so dives at different depths can be compared. Diveology works it out for every dive with tank pressures. Try the SAC rate calculator.