Plan your dives, log them, and watch the app learn your air consumption. Built for divers — offline-first, calculator-rich, and honest about your numbers.
Plan the dive. Dive the plan. Log the dive — and every log makes the next plan smarter.
Group dives into trips with notes, dates, and tappable emergency numbers. Pin each dive to a site from your personal library — coordinates, photos, and a MapKit pin when you're online.
Pre-dive plans capture gas mix, target depth, planned bottom time, buddy, role, and gear profile. Post-dive logs record what actually happened — pressures, deco stops, temperature, visibility, and comments.
Save a log with cylinder pressures and the app computes your Surface Air Consumption rate, rolls it into a 10-dive average, and seeds the next plan's SAC field automatically. The more you dive, the better your plans get.
Drop a UDDF or XML export from Shearwater Cloud, Subsurface, Suunto DM5, Garmin Dive — anything. Attach an imported dive to a log and it fills the blanks without overwriting what you typed. Re-imports are deduplicated.
Everything lives as JSON and image files in your device's Documents directory. No server, no account, no network required. Your data goes nowhere unless you export it yourself.
Bühlmann ZH-L16C repetitive-dive planning, nitrox blending, MOD, ascent gas, SAC, oxygen toxicity, weight required, and more. Attach a result to a plan and it lives in that plan's record forever.
Bundled guides for Beaufort scale, deco notes, hand signals, and nitrox tables. Default pre-dive and packing checklists shipped on first launch — make them your own, items stay checked between sessions.
Save multiple gear profiles (drysuit vs wetsuit) with one marked as default. Track certifications by agency, level, and expiry. See total dives, depth and time aggregates, and your SAC trend across the last 10 dives.
If your subscription ends, your dive logs, sites, profile, gear, and photos remain visible forever. Reference material and data export stay free, always. The app respects what you've already put in.
Standalone tools, or attach a saved result to any dive plan.
Both tiers shown side by side on the paywall. No "preferred" plan, no bait-and-switch.
7-day free trial. Cancel any time from the App Store.
Pay once, dive forever. No subscription, no renewals.
Reference material (Beaufort scale, deco tables, hand signals, coordinate converter, default checklists) is always free. Data export is always free. If your subscription lapses the app stays read-only — your logs, sites, photos, and stats remain visible forever.
Coming soon to the App Store for iPhone and iPad.
Available soon on the App Store