Scuba Dive Log & Apnea: Divey

Divey is a private dive logbook and breath-hold trainer built to help you record every dive, understand your diving, and get better in the water — without ever giving up
your data.

Your dives, your data — and yours alone.

Private by design
No account, no login, no sign-up — just open the app and start
All your data is stored locally on your device by default
No analytics, no tracking, no ads, no third-party data collection
Optional iCloud sync runs through your own private iCloud, never our servers

Your logbook
Log a dive in seconds, or fill in the full detail — depth, time, air, gas mix, weights, suit, visibility, temperature, current and more
An interactive depth profile you can scrub with a long press
Photos, buddies, spots and the marine life you saw, all searchable
Import and export UDDF — free for everyone, no lock-in
A printable PDF logbook with signature fields for stamps and verification

Understand your diving
Stats by month, year and all time — dives, hours, max and average depth
Depth trends, dive frequency, air consumption and ascent-rate analysis
Top spots, top buddies and most-seen species
Milestones and challenges based on what you have actually dived

Train your breath-hold
Adaptive O2 and CO2 tables that adjust to how hard each round felt
Static apnea with a target time you set yourself, from 30 seconds to 10 minutes
Guided exercises: box breathing, diaphragm work, CO2 tolerance and more
A six-week program, weekly plan, streaks and optional reminders

On your Apple Watch
Log a dive right from your wrist, no phone needed
Dive Mode on Apple Watch Ultra with live depth from the water sensor and a depth alarm
A data glance for your last dive, totals, apnea personal best and streak
Breath training, complications and a Smart Stack widget

Find your next dive
A map-first view with curated dive spots around the world, plus weather
Your own reviews and condition reports, stored on your device
A marine life database with 1,385 species — habitat, behavior and what to watch for

Certificates, buddies & gear
A digital wallet for your cards, plus QR verification for buddy dives
Gear sets with service reminders so nothing expires unnoticed
Checklists, a weight-belt calculator, a SAC calculator and a dive planner

Safety at hand
DAN emergency numbers, decompr