The Dive Journal

An easy, intuitive dive log, backed by real data from divers like you. Log your dives, name the fish you saw, find your next site and share every trip. Made by divers. No ads, ever.

Download on theApp Store GET IT ONGoogle Play

See the features ↓ Got an Otterseas journal? Redeem your code →

Dive sites mapped: 5,900+
Species in the index: 4,700+
Ads: 0

The Dive Journal home screen on an iPhone: welcome back, dive count, hours underwater and the world map of your dives.

Log everything in one place.

One app for the log, the photos, the fish and the next trip.

Log your dives

A simple, intuitive layout for every part of the dive.

Type it in on the boat, or photograph your paper logbook and the app reads it for you. Site, depth, time, conditions, gear, buddies and what you saw, all in one place.

Pick the site from 5,900+ mapped dive sites
Sync your dive computer over Bluetooth, depth profile and all
Scan old journal pages and the app logs the data for you
Works offline and syncs when you’re back online
Dive photos saved on each log, backed up to the cloud
4,700+ species to tag on your dives

Three phones showing a logged dive at Um El Faroud, Malta: gas and air, the dive stats and the Diver'gram.

Your gear

Your kit: easy to record, easy to customise.

Build your equipment lists: suit and thickness, BCD, fins, mask, tank, regulator, computer and camera, drawn on a diver like you. Save them as presets, and keep every item in your gear library with its service dates.

Folder tabs for every piece of kit
Gear presets you apply in one tap
Service reminders before something is due

The Equip tab of a dive log with the BCD types, and a Tropical Kit preset card saved from it.

No more scrolling through your phone gallery looking for photos.

Trip highlights

Create dive trip highlights.

Curate your best dives from a trip into one highlight with your photos, stats and the animals you saw. Then share it as a story card or a short video, made on your phone.

Story cards with your route, sites and sightings
A short trip video for your story
Post to Instagram, Facebook, WhatsApp or anywhere

The Philippines 26 trip highlight: the Highlights page, the trip page with its photos and the story card with the dive route.

Explore · Powered by divers

Community dive data. Built from what divers actually see.

Every dive logged at a verified site adds to the map, with no names attached. Look up a site before you go, or find where a species turns up and when.

Where and when each species is seen
Water temperature, month by month
What exposure suit divers wore
Visibility, current and depth at each site
Verified sites, checked before they go public

It gets better with every diver who logs. Your name is never shown, and you can switch sharing off.

Hotspot maps for the oceanic whitetip shark in the Red Sea and the grey seal around Britain.

What’s that fish? Look it up with the built-in fish identifier.

Marine index · What’s That Fish

Track what you saw.

Thousands of species with photos and where they live, searchable by region. Not sure what it was? What’s That Fish narrows it down from shape, colour and pattern in a few taps.

4,700+ species, filtered to where you dive
Shape, colour, pattern: a short list of matches
Add what you saw to your dive in one tap

What’s That Fish: the pattern step, a zebra shark match and a blue triggerfish match.

Marine Safari · Badges

Tick off everything you’ve seen so far.

Every animal you log goes into your own safari. Fill each category, chase the ones you haven’t seen yet, and earn badges for the big moments along the way.

Your species count, category by category
Badges like Manta Magnet and your 100th dive
Your badges show on your buddy card

My safari with species counts by category, and the Master of Disguise badge earned.

Buddies · Sign-offs

Swap cards, get dives signed.

Scan a buddy’s card to add them to your dive in seconds. On a course? Your instructor signs the dive on their phone, and the stamp is verified.

Buddy QR cards with your certs and badges
Instructor sign-off with a verified stamp
No more chasing signatures in a paper log

A buddy card with certifications, badges and a QR code, and the instructor sign-off QR.

Dive Mode

Gone diving. Your lock screen knows.

Switch on Dive Mode before you get in. Your lock screen shows your own “gone diving” message with your emergency contact and dive insurance, so anyone on the boat or the shore can find them fast.

Your own “gone diving” message
Emergency contact and insurance on the lock screen
On iPhone and Android, off with one tap

Dive Mode switched on, and the lock-screen card: on a dive, be right back, with the emergency contact and insurance.

Your diving in numbers

Keep track of your stats.

Your dive count, hours underwater, deepest and longest dives and how your air use changes over time, all worked out from your own logs. Nothing extra to fill in.

Dive count, bottom time and depth records
Your SAC trend, dive by dive
Every number built from what you log

My diving: dives logged, hours underwater, species and countries, with personal bests.

The gas calculator: nitrox, MOD, equivalent air depth and best mix.

Dive tools

Gas planning tools.

Gas, nitrox, bottom time, unit conversions and your own SAC rate, worked out from your logs. Planning aids to cross-check, never a dive computer.

Gas, MOD and best mix
Bottom time from your own air use
Pressure, depth, temperature and weight conversions

My tropical list: a packing checklist with dive essentials ticked off and items to buy flagged. — Trip checklistPack for the trip and tick it off as you go.

Credential Wallet

Your certs and insurance cards, always with you.

Scan your certification cards, insurance and specialties into one wallet. Show them at the dive centre, even with no signal.

Scan a card and the details fill in
Insurance with a reminder before it expires
Works offline, on the boat or at the desk

And the rest

Everything else a diver needs.

Your dive buddies

Everyone you’ve dived with, and every dive you shared.

Trip packing checklist

A packing list that remembers your kit, trip after trip.

Milestones

Your 50th dive, first night dive and new countries on one timeline.

Print and export

Any dive as a printable page, or every dive as CSV, JSON or PDF.

Works offline

Your log, your cards and the species index work with no signal.

Private by default

No ads and no tracking. Your dives are yours.

We do things a little differently

Pay when you dive.

You dive a couple of weeks a year. You have the option to just pay when you need it. Keep your logbook and all your photos for 99p a month, boost it for the month you dive, or go Premium for everything, all year.

Free for everyone

Explore map · species index · What’s That Fish · packing list · no ads, ever

Keep it going

Basic

£0.99 a month

or £9.99 a year

Keeps the lights on and your logbook stored. Your first 15 logs at any pace, then 5 a month, with 4 photos a dive. Buys us a coffee.

For specific dive trips

Boost

£3.99 for 30 days

No subscription, no renewal

Going diving?
Everything in Premium for the trip, then back to Basic when you get home.

Everything, all year

Save 40% yearly

Premium

£3.49 a month

or £24.99 a year

For divers who dive all year round. Everything in Basic, plus:

Unlimited logs
Dive computer sync over Bluetooth
10 photos a dive, backed up
Dive tools and SAC trend
Your dive stats and charts
Unlimited highlights
Share videos for your story
Printable dive pages
Scan any paper logbook (scan credits)
Unlimited card scans into your Wallet

Compare every plan ↓

Compare every plan

Feature	Free	Basic	Premium · Boost
Explore, species index, Marine Safari, What’s That Fish	✓	✓	✓
Packing checklist	✓	✓	✓
Log dives	– –	15 at any pace, then 5 a month	Unlimited
Dives backed up and synced	– –	✓	✓
Dive computer sync (Bluetooth)	– –	– –	✓
Photos backed up per dive	– –	4	10
Otterseas journal page scans	– –	50 a month	50 a month
Scan any other paper logbook	– –	– –	With scan credits
Card scans into your Wallet	– –	First 3	Unlimited
Buddy QR card and gear presets	– –	✓	✓
Highlights and share cards	View	3 highlights	Unlimited
Share videos for your story	– –	– –	✓
Dive tools and SAC trend	– –	– –	✓
Dive stats and charts	– –	– –	✓
Printable dive pages	– –	– –	✓
Export every dive (CSV, JSON, PDF)	✓	✓	✓

Add-ons: Photo Boost adds 10 more backed-up photos a dive. Scan Packs add credits for other logbooks.

The Otterseas journal

Bought the paper journal?

The code inside gives you 6 months of Premium. Redeem it on the web, then sign in to the app with the same account.

Redeem your code

Why not free?

The species index, the dive-site map and the servers cost money to build and run. We’d rather charge 99p than sell your attention, so there are no ads and we never sell your data.

What happens if I stop paying?

Your logs, highlights and wallet cards stay in the app on the free tier, and the free features keep working. Backed-up photos are kept for 45 days so you can renew or download them; after that the cloud copies are removed. The photos on your phone stay.

Prices shown for the UK. The App Store and Google Play show the price for your country. Plans are bought in the app.

The dive log that’s easy to use and built on real diver data.

Free to download. Sign up with your email; no card needed.

Download on theApp Store GET IT ONGoogle Play