Loggerfish: Scuba Dive Log

Diving logbook, planner, trips

Free · Designed for iPad. Not verified for macOS.

New in 1.1: download from 105 dive computers. Weather and tides at your dive sites. Your logbook on Apple Watch. A coach for your air use. No dive cap. Your scuba dive log, and what it adds up to. Download straight from 105 dive computers, or import from SSI, Garmin and Subsurface. Loggerfish remembers every dive and tells you what your diving says: a coach for your air use, a forecast for your year, every site's memory, your logbook as a story, and Wrapped, your year in diving. The planners and your trips are in the same app, and the logbook is free with no dive cap. EVERY SITE REMEMBERS Where you got in, what it is usually like, the lead that worked, and the last visibility and water temperature, read off your log. Your life list at each site, and what is still to find there. YOUR STORY, AND WRAPPED Your logbook read as a journal, a chapter for each trip and month with its photos and firsts. Wrapped: your year as an image or a short video, and your logbook on its anniversary. YOUR DATA STAYS YOURS Never sold, no ads, never used to train AI. Export to Excel or UDDF, print it or save it as a PDF, or take a full backup whenever you like, and clear the whole logbook from Settings when you want to start again. BRING YOUR LOGBOOK WITH YOU Import an SSI export, Garmin FIT files, a Subsurface log (.ssrf), UDDF from other logbook apps, or any spreadsheet by matching its columns. On iOS 17 and later, Loggerfish can also read the dives saved in Apple Health. Every import is previewed before anything is written. Loggerfish can also download dives over Bluetooth on iPhone from a Mares Sirius, a Shearwater Peregrine TX, an Aqualung i300C or a Suunto EON Core, and from 101 more models as Beta; for other dive computers it reads exported files. YOUR OWN COACH AND YEAR FORECAST (PRO) Your air use against your own history, by depth, water temperature and suit; a look back at your last dive; gear service and lead before a trip. Where your year is heading against the goal you set, and this year against last. It compares you with your own dives only. WEATHER AND TIDES (PRO) Weather, waves and tides at your dive sites, before you go. PLAN BEFORE YOU GET WET A decompression planner (Bühlmann with gradient factors) for divers trained for it, and seven more planners: nitrox (with equivalent air depth, maximum operating depth and gas density), no-stop limits, gas blending, best mix, minimum gas (rock bottom), weighting and buoyancy swing. They are planning aids, not a dive computer, and they say so. DIVE PASSPORT (PRO) Your certifications, insurance, medical certificate and last dive on one screen that opens with no signal. LOG A DIVE THE WAY YOU ACTUALLY DIVE Depth, time, gas, conditions, buddies, sightings, photos, your own tags and a star rating. Your photos stay on your device or in your own iCloud. Feet, °F and psi if you prefer them to metric. SEE YOUR OWN DIVING Records, depth and duration over the years, what your gear, training and trips have cost per dive, the trips ahead, gear that's due for service, and your certifications and what comes next. IT WORKS WITHOUT A SIGNAL The logbook is stored on your device, so you can log on a liveaboard with no reception at all. An account is optional. In English, German, Spanish, French and Polish. FREE AND PRO Loggerfish Pro: Know your air · Relive every dive · Ready for the trip. Free, for good: unlimited dives, logging, import, export, the download from your dive computer, your dives on a map, backup, every planner, site memory, the story and Wrapped. Loggerfish Pro adds: Dive coach, weather and tides, dive analysis, passport and more. Pro is a monthly or yearly subscription, or a one-off lifetime purchase, and a free account comes with a 14-day trial. Subscriptions renew automatically until you cancel them in your Apple ID settings, at least a day before the renewal date. Terms of service: https://loggerfish.com/terms/ Privacy policy: https://loggerfish.com/privacy/

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Download from 105 dive computers over Bluetooth, now free. Weather, waves and tides at your dive sites (Pro). Loggerfish on Apple Watch (Pro), and widgets for your home screen. Save dives to Apple Health. Photos sync through your own iCloud (Pro). Several logbooks in one app, and a second computer on one dive.

Version 1.1

The developer, Felix Patrick Rief, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Health & Fitness
    • Purchases
    • Location
    • Contact Info
    • User Content
    • Identifiers

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Purchases
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
Felix Patrick Rief
Size
28.6 MB
Category
Sports
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPad
    Requires iPadOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
  • Apple Watch
    Requires watchOS 10.0 or later.
Languages
English and 6 more
  • English, Dutch, French, German, Italian, Polish, Spanish
Age Rating
4+
Copyright
© 2026 Felix Rief, trading as Rief Digital Apps
  • Developer Website
  • Privacy Policy