Loggerfish
The dive logbook that shows you what your diving says
Loggerfish brings every dive you've done into one logbook. It remembers every dive and shows you what your diving adds up to: a coach for your air use and a forecast against your yearly goal (Pro), a memory for every dive site, your logbook as a story, and a yearly Wrapped. You can import from SSI, Garmin, Subsurface, or UDDF in a minute, or download over Bluetooth from a Mares Sirius or Shearwater Peregrine TX (Pro). The logbook is free with no dive cap, always exportable as Excel, UDDF, or a full backup, and never sold or used to train AI. Made by a diver and instructor in Hamburg, for iPhone and the web.
Founding Diver: lifetime Pro for €99, paid once, for first 500 divers or first 90 days after launch (6 Nov 2026)