Nautilus DiveKit: Dive Log

The scuba dive log that works where there is no signal: on the boat, on a remote island, at the dive site.

Nautilus DiveKit puts everything a sport diver used to carry on paper into one app: your dive logbook, your certification cards, the calculations, the hand signals, the fish you want to name. Free, no ads, no account.

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DIVE LOGBOOK
Log every dive: date, site, maximum and average depth, bottom time, water temperature, visibility, gear used, weights, gas mix, buddy and notes. Attach your photos. The dive number takes care of itself.
Statistics build themselves: total dives, hours underwater, deepest dive, yearly average, most visited sites.
Export your logbook to PDF whenever you need something to show.

CERTIFICATIONS AND DOCUMENTS
Certification cards, medical certificate, insurance, tank inspection: all in one place, with photos or PDFs attached. The app warns you before a document expires.

DIVING CALCULATORS
Air consumption and duration, oxygen partial pressure, maximum operating depth (MOD) for nitrox mixes, equivalent air depth, unit conversion.

MARINE LIFE — 307 SPECIES
One card per animal, with photo, scientific name, where it actually lives and how to behave if you meet it. 23 regions of the world on a tappable map, from the Mediterranean to the Red Sea, from the Caribbean to the Indo-Pacific.

DIVING HAND SIGNALS — 66 SIGNALS
The signs divers use underwater, each one photographed and sorted by category: communication, emergency, direction, animals.

GEAR CHECKLISTS
Build your own lists (boat dive, dive trip, night dive) from an illustrated catalogue. Never leave your fins at home again.

MY DIVE CENTRES
The dive shops and dive sites you want to remember: contacts, services, GPS coordinates. From there you start navigation, call or email with one tap.

SAILOR'S KNOTS
Nine knots that are actually useful on a boat, explained step by step with images.

DIVE BUDDIES
The address book of the people you meet around the world: contacts, socials, where you met.

ONLINE RESOURCES
Marine weather, tides, reference sites: a ready-made catalogue you can extend.

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WHY IT IS DIFFERENT

• Genuinely free: no subscription, no paid features
• No advertising
• No sign-up: open it and use it
• Works without internet, always
• Your data stays on your phone: we do not collect it, see it or sell it
• Full backup in a single file, so you can change phone without losing anything
• Six languages: English, Italian, Spanish, French, German, Portuguese
• Light and dark theme

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IMPORTANT
Nautilus DiveKit is an informational and organisational tool. It does not replace training, certification, dive tables or a dive computer, and must not be used to plan decompression. Always dive within the limits of your certification and with your safety equipment.

Safe diving and happy bubbles!