DeepSix Dive Log

Your dives. Remembered.

Free · In‑App Purchases

A dive isn't a pin — it's a path. Free — the whole app, no dive cap, no ads. The in-app purchases are optional Patron tiers that support the project. A dive isn't a row of numbers. It's a memory — a path through the water, the wreck's story, the fish you can name now, what the ocean was doing that day. DeepSix Dive Log treats it that way. DeepSix Dive Log is native on iPhone, iPad, Mac, and Apple TV, with an Apple Watch Ultra companion. Your logbook lives on your devices and syncs through your own iCloud. No account. No DeepSix copy of your dive log. And it's free — the whole app. No dive cap, no ads. YOUR DIVE IS A PATH, NOT A PIN DeepSix extracts both entry and exit GPS from Shearwater dive computers — plotted together on the map, so a drift dive finally looks like what it was. Bluetooth download across 12 transport families, built on libdivecomputer; wired USB/serial import on the Mac; Garmin FIT and Suunto JSON too. Arm dive-day GPS tracking and the whole day becomes a route. Dives recorded on Apple Watch — the Depth app included — come in from Health and get their depth profile. WONDERS — WHERE THE OCEAN SHOWS OFF A curated catalog of remarkable underwater places, with real narratives — surfaced the moment a dive of yours lands near one. Each one contributed by DeepSix Dive Log divers. WRECKS, WITH THEIR WHOLE STORY 29,000+ curated diveable wrecks from national heritage registers on every continent, with offline coverage, historical dossiers, period-correct ensigns, and honest position-uncertainty rings. War graves are presented as something you honor, not trivia. Contribute corrections from inside the app; a person reviews every one. PHOTOS BECOME SPECIES Critter Expert identifies around 500 marine species entirely on your device — free, no account, no API key, no internet after a one-time 63 MB download. Region-gated, so it won't suggest a Caribbean fish in Palau, and nothing is ever confirmed for you. Names are verified against the World Register of Marine Species, with threatened-species status and invasive-species reporting built in — over time, your photos become a naturalist's logbook. Want the full range? Bring your own AI key (Anthropic or OpenAI) or a model on your own Mac — never a DeepSix charge. THE COLORS YOU ACTUALLY SAW Underwater photos come back blue. DeepSix knows how deep you were when you pressed the shutter, and whether the water was tropical blue, green or fresh, and restores the reds the water absorbed. Camera-aware, with GoPro red-filter compensation. Apply to one photo or the whole dive; corrections land in Apple Photos as revertible adjustments, never as copies. Video too, frame by frame as your depth changes. Free, on-device, nothing uploaded. WHAT WAS THAT DAY ACTUALLY LIKE? Tide state at your entry minute. Moon phase, sea temperature, swell, bleaching alerts, reef context from the Allen Coral Atlas and NOAA. Years later, the record answers what memory can't. Plus a 7-day conditions planner. BUILT HONEST Gas analysis that names its excluded dives. Deco shown as information, not alarm, when you dive tech. "Dives near" instead of inflated counts. Full-fidelity UDDF and Subsurface export, always free — lossless backup, the open .deepsixarchive format, and SQL and JSON exports any developer can build on. Your dive log will outlive any app, including ours. Smart Lists, gear and kits with service tracking, achievements, trips and a liveaboard planner round out the log. MacDive user? A high-fidelity import brings your dives, gear, photos, and dive-computer profiles across. FREE MEANS THE WHOLE APP Plankton, Whale, and Megalodon — the in-app purchases listed here — are optional Patron tiers that support the project. Their one perk is high-accuracy WorldTides tides; standard tides are free, or bring your own WorldTides key. DeepSix collects nothing unless you choose to send it: a wreck, a photo, a bug report. The privacy policy names every server we run and exactly what each one sees. Privacy policy: https://deepsixdive.com/privacy/ Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

  • 5.0
    out of 5
    1 Ratings

Our first update, shaped by what divers told us since launch. NEW • Dutch: DeepSix Dive Log is now available in Dutch, with Dutch species names where they exist. Thank you to the volunteer who translated it. • iPhone Duo: first support, with full-page sheets on the unfolded display. • Apple Watch: each dive reaches your iPhone once its exit position settles, and a new screen shows what the watch recorded. • Garmin dives import their gas mixes. Import older files again to pick them up. • Short names for trips, your own names for species, and "Don't Offer Again" for dives you never want to download. • Gear: longer and custom service intervals, and a Next Service date you can set yourself. FIXED • Crashes when connecting OSTC and hwOS computers, editing a dive's location, removing a dive's profile, and during iCloud sync. • An interrupted download no longer skips older dives the next time. If a past download stopped partway and some dives never appeared, clear the computer's download history and download again; dives you already have are skipped. • Shearwater Teric dives use the time zone the computer recorded. • Dives imported from MacDive with split tanks or a closed-circuit section they never had, and older Shearwater dives with false samples at the end, are repaired once, automatically. • Setting up another device no longer duplicates buddies or blanks trip names. • Exports of very large archives, altitude sites and two-tank dives are written correctly. • A photo removed from a dive no longer stays on as its thumbnail. German, French, Italian, Spanish, Japanese and Chinese are switched off until their translations are complete; nothing translated is lost.

The developer, Richard Bollar, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Health & Fitness
    • Location
    • Contact Info
    • User Content
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer indicated that this app supports the following accessibility features. Learn More

  • Supported Features

    • Dark Interface

Seller
Richard Bollar
Size
82.3 MB
Category
Sports
Compatibility
Requires iOS 18.0 or later.
  • iPhone
    Requires iOS 18.0 or later.
  • iPad
    Requires iPadOS 18.0 or later.
  • Mac
    Requires macOS 15.0 or later.
  • Apple Vision
    Requires visionOS 2.0 or later.
  • Apple TV
    Requires tvOS 18.0 or later.
  • Apple Watch
    Requires watchOS 10.0 or later.
Location
This app may use your location even when it isn’t open, which can decrease device battery life.
Languages
English and Dutch
Age Rating
4+
In-App Purchases
Yes
  • Plankton (Yearly) $9.99
  • Plankton (Monthly) $0.99
  • Megalodon $99.99
  • Whale $49.99
Copyright
© 2026 Bollar, LLC