Dive Logbook
Log depth, time, visibility, site, temperature, and buddies. Your complete diving history, searchable, shareable, and permanent.
Your dives. Your certs.
Your ocean community.
Log every dive, carry your certifications, discover new sites, and connect with your dive buddies. Available on iOS, Android, and web.
Start Diving
Sign in with Google
No download required
iOS & Android apps available
Everything a diver needs
Certification Card
Verify and store certifications from any agency: PADI, SSI, TDI/SDI, CMAS, and more. Share a tamper-proof card via a single link.
Dive Site Finder
Discover every dive site and dive center worldwide. Search by name or browse what's near you.
Dive Buddies
Connect with divers worldwide, share logbook entries, and find buddies for your next dive trip.
Your dive log,
everywhere you dive
Log a dive right after surfacing, check your cert before boarding a boat, or find a dive site while planning the trip. 4divers goes wherever you go: iOS, Android, and any browser.
Or use the web app, no download needed.
Your professional record,
always in your pocket
Walk into any dive center, charter, or live-aboard with your complete certification record one link away. 4divers works with any certification agency, because every certified diver deserves a professional record.
- Any certification, any agency
- Shareable link, send it before you board
- Tamper-proof, dive centers trust it
- Linked to your dive log, one complete record
Every dive tells a story.
Keep yours.
You surface. Heart still racing. The reef, the turtle, that moment of silence thirty metres down. Minutes later the details are already fading. Paper logbooks get lost. 4divers doesn't. Log every dive from your phone the moment you surface, and build a living record of your underwater life.
Log
every dive, every detail
Verify
any cert, any agency
Discover
all dive sites and centers
Dive
iOS, Android and web
Start in under a minute
Sign in with Google
One click. No new password. Your data is yours.
Log a dive or add your certs
Takes 90 seconds. Shareable instantly.
Connect with your community
Find buddies, explore sites, grow together.
Questions
- 4divers is free to sign up and use. Sign in with your existing Google account, no new password needed.
- 4divers supports divers with any certification: PADI, SSI, TDI, SDI, CMAS, and others. If you're a certified diver, 4divers works for you.
- No. Sign in with your existing Google account in one click.
- Yes. 4divers has a worldwide dive site database. Search by name or location to find what's nearby, including dive sites and dive centers.
- Yes. Share dive entries, your logbook, or your certification card via a single link. Useful at any dive center check-in.
- Yes. 4divers is available on iOS and Android. You can also use the web app on any device without downloading anything.
Ready to dive in?
Your dive log, your community, your ocean.
Start on web or download the app.