Sites. Species. Logs.
A logbook with the world built in.
Browse dive sites around the world and illustrated marine species. Below syncs your dives over Bluetooth and pairs each photo with the dive it was taken on. It logs open-water and technical dives alike.
iPhone · Free · No account required
12,000+
Dive Sites
99
Compatible Computers
14
Languages
Sites
Know before you go.
Tap any site for the full picture: depth range, typical visibility, common sea life, and a detailed brief. 12,000+ sites indexed — from the Great Barrier Reef to your local quarry.
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Dive Logs
Your complete logbook. Minus the paper.
Every dive in one scrollable list, grouped by month. Date, depth, duration, site — everything at a glance. Search and filter across your entire history instantly.
See all featuresProfiles
See the shape of every dive.
When you download from your dive computer, Below renders the full depth profile — depth over time, water temperature, NDL, gas switches, ascent rate. Every sample, every moment of the dive.
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Compatibility
Works with the computer you already own.
Connect via Bluetooth and pull dives directly from your Shearwater, Suunto, Oceanic, Mares, Aqualung, or Scubapro. Garmin dives import via FIT files. Apple Watch data comes in through HealthKit.
Already logging somewhere else? Import from MacDive, Subsurface, or any UDDF file.
See the full compatibility list →
Collections
Plan trips. Save favourites. Stay organised.
Group dive sites into collections — a trip to the Maldives, your local spots, a wishlist of places you haven't been yet. Add notes, download for offline access, share with dive buddies.
See all featuresYour Journey
Every dive adds up.
Total dives, hours underwater, deepest depth, sites visited. Dives by year, depth trends over your career. Your complete diving history in one place.
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Browse dive sites
Every dive site, mapped.
Browse thousands of sites in your browser — before you book, before you dive.
Explore the MapWhat’s New
Pinch to zoom into a photo and pan across it. Gas & Tanks shows where each pressure came from. Before you change a value your dive computer recorded, Below asks, and you can put the original back. Each tank shows how much gas you used, and the SAC tooltip lists every tank with its own pressures. Sightings suggests species from around the site you dived, including sites you added yourself. Saving an image to Photos asks only to add to your library.
Download your dive computer's dives on a new install and review them before they're saved. Scubapro G2, Mares Puck4 and Deepblu COSMIQ show up by name when you scan for a computer. Choose Add manually on the import screen to log a dive by hand.
Reliability improvements and minor fixes.
A redesigned Profile — your dive history, certifications, countries visited, gear, and dive safety in one place. Six analytics charts: SAC trends, depth bands, experience progression, frequency, duration trends, cumulative time. What else is new in 1.2.0: • Smarter map search across territories, regions, sites • Dive Safety section — DAN, DiveAssure, PADI Dive Cover • Add a site without leaving the map — new + button • Unified site creation • Fish ID region filter • Import polish (MacDive errors, phone-GPS hints) • Site Detail accessibility N/A • Dive log focus + parse polish
Fish ID is here — identify fish from photos, free for everyone. What else is new in 1.1.0: • 431 coral species added to the Species Hub • Past Dives filter redesigned with active filter pills and an inline accordion • Smarter site search — multi-word matching, works across diacritics • My Sites: clearer linked-site badges and cleaner duplicates handling • Map: better offline experience, transliterated labels for non-Latin locales, satellite toggle fix • Dive sharing with rich preview cards • Equipment screens refreshed — gear loadouts are now called "Rigs" • Lots of dark-mode polish, plus performance and crash fixes
Below is now available on the App Store. Log dives, discover 10,000+ dive sites worldwide, and sync from your Bluetooth dive computer. Download free — no account required.
No account required.
Your dive log stays on your iPhone. Turn on iCloud sync to copy it to your own iCloud. Export it as CSV, PDF, UDDF, or Subsurface XML whenever you want.
On-device
Private
Export anytime
FAQ
Common questions.
Does Below require an account?
No account needed. Your dive log stays on your iPhone. Site names when you import, anonymous usage counts, and crash reports do leave it. See below.app/open.
What does Unlimited unlock?
Below Unlimited adds the full profile chart, career analytics, site statistics, offline maps, photo matching, unlimited gear and watermark-free cards for $19.99 a year. Logging, site discovery, Bluetooth import, every export format and the per-dive SAC, deco and gas numbers stay free.
Does Below work offline?
Yes. Below is offline-first — logging, BLE import, and previously viewed sites work without internet. Unlimited subscribers can pre-download site data for remote destinations.
Can I import from MacDive or Subsurface?
Yes. Import your complete dive history from MacDive SQLite exports, Subsurface XML files, or any UDDF file.
What happens to my data if I cancel?
Your logbook and every export stay yours. The full profile chart and the other Below Unlimited features lock until you subscribe again.
Which Shearwater computers work with Below?
All current Shearwater models via Bluetooth: Perdix 2, Perdix AI, Teric, Petrel 3, Petrel 2, and Nerd 2.
Which Garmin Descent models are supported?
Garmin Descent Mk3, Mk3i, Mk2S, and G1 via FIT file import. Export your dive FIT files from Garmin Connect and import directly into Below.
How does Below compare to Oceanic+?
No hardware lock-in, $19.99/year vs $79.99/year (U.S. pricing).
Is Below on Android?
iPhone only. Android isn’t available yet.
Start logging.
Available free on iPhone.
Below Unlimited adds the full profile chart, analytics, offline maps, photo matching and unlimited gear for $19.99 a year. Your first 7 days are on us, no card.