Scuba dive logbook: log dives, gear and certifications, then export PDF or CSV.
Dive Log: Scuba Logbook is a scuba logbook and manual dive journal for the dives you make. Log the site, depth, time, gas and buddy, add a signature to your dive card and export a PDF or CSV logbook. Group dives into trips, keep gear service reminders and certification notes, and watch your dive statistics build up over time.
LOG A DIVE IN A MINUTE
Enter the date, dive site, depth and duration, then add what you want to remember: water temperature, visibility, gas or oxygen label, cylinder pressures, weight, exposure suit, buddy and notes. Dive numbers continue from the number you already have, so an experienced diver's dive log book picks up where the paper one stopped.
BRING YOUR EXISTING LOGBOOK
When you start, tell the app how many dives you have already logged and it numbers the next one to follow on. Add your recent dives in the first sitting, then keep logging after each trip. Edit any entry later, and keep notes on the site, conditions and what you saw while the memory is fresh.
EVERY TRIP TOGETHER
Group the dives from one holiday, liveaboard or weekend at the local site into a trip, so a week of diving reads as one story in your logbook.
YOUR SCUBA DIVING LOG BOOK, ORGANIZED
Return to earlier dives and keep the record tidy as your history grows. Review descriptive statistics: total dives and time, deepest and longest dives, dives per year, top sites, gas breakdown and frequent buddies. Totals and averages summarize the entries you made; they are not exposure calculations, a training assessment or a recommendation for the next dive.
GEAR AND SERVICE REMINDERS
Keep an inventory of your diving equipment and the service details you choose to record. Set your own service intervals and use local reminders when device settings and notification permission allow. The schedule is the manufacturer's and your service center's call; the app does not inspect equipment or supply a maintenance schedule.
CERTIFICATIONS AT HAND
Record the agency, level and other certification details as your own notes for quick reference. These are text fields you maintain, not verified credentials, and they do not replace the documents a dive operator asks you to present.
SIGN YOUR DIVE CARD
Add a drawn signature to a dive record when you want a buddy or instructor to sign it. The signature is an annotation on your personal record; it does not authenticate the signer's identity, certify a dive or create an agency-approved logbook.
PRINT A PDF LOGBOOK OR EXPORT CSV
Create a PDF laid out as logbook cards, oldest dive first, with signatures inline, or export your data as CSV for a spreadsheet or archive. Check the output and choose how you share it. Text backup and restore keep a separate copy of your records under your control.
SURFACE INTERVAL IS ELAPSED TIME, NOT A SAFETY CALCULATION
Where the log shows a surface interval, it is the elapsed time between two recorded dives, the same column a paper logbook has. It is not a decompression calculation, a no-stop limit or guidance about when it is safe to dive again. Gas and oxygen entries are labels and numbers you copy from your gear; the app calculates nothing from them.
OFFLINE AND PRIVATE
Logbook records are stored on your device and work offline, with no account. Sharing a file is always your choice. App services have separate connection and data requirements, described in the privacy policy.
A personal record — not a dive computer, not a dive planner, and not a substitute for training or dive tables.
The app records dives you have already made and the details you enter. It does not import profiles from a dive computer, sync over Bluetooth, capture GPS or log photos, and it does not compute decompression status, no-stop times, gas consumption or exposure limits. It is not affiliated with, endorsed by or approved by any diving training or certification agency. Read your own instruments, follow your training and dive within the limits you were taught.
What's new
The first release of Dive Log.
• Log a dive in about a minute — site, depth and time, with everything else optional
• Bring your paper logbook across: your dive numbering picks up where it left off
• Depth and time records, dives per year, most-dived sites
• Group dives into trips
• Track gear with your own service reminders, and keep your certifications
• Export your logbook as PDF or CSV, and sign your dives on screen
Works offline. No account, no ads.