Puffin vs Bottomtime

Keep your dive history in one logbook you can open anywhere. Import computer logs, add dives manually, and review depth, gas, and site details when you need them. • Your dives, organized — browse your catalog with depth sparklines and quick access to every entry • Import from your computer — bring in Shearwater .db, UDDF, and dctool-supported logs; share from Shearwater on iPhone • Every dive, full detail — date, depth, duration, site, location, notes, and gas profiles • Trips as sessions — group dives, merge or split sessions, and auto-group by geolocation • See where you dived — map dive sites, filter by location, and set geo when logging Sign in with email, Apple, or Google. View logbook and session statistics with category filters. Try guest mode with bundled sample dives before you create an account. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Bottomtime is the dive logbook that belongs to you — beautiful, fast, and offline-first. Log a dive in 30 seconds, watch your sites map fill up, and keep your whole diving life in one place. No account required. Your data is yours. WHY DIVERS SWITCH TO BOTTOMTIME • Offline-first: log on the boat, the liveaboard or the cenote — no signal needed. Everything syncs when you're back. • Log a dive in 30 seconds: site, depth, time, gas, buddy, conditions — fast, or as detailed as you like. • Your sites on a map: every dive plotted, your personal underwater passport. • Species log included — names and sightings are never behind a paywall. FREE, AND GENEROUS • Unlimited dive log with photos • 30-second quick log and a full detailed editor • Career stats: dives, max depth, total bottom time • Dive sites map • Marine species log with common names BOTTOMTIME PRO — automation and comfort, never your data • Import from Apple Health and dive computers (depth, duration) — no double entry • Import and export open formats: UDDF, CSV, PDF • Automatic iCloud sync across iPhone and iPad • Advanced stats and trends: SAC/RMV, average depth, progression over time • Gear tracking with service reminders • Species photos and history • PDF logbook export with instructor signature • Surface interval and no-fly planner (informational) • Home Screen widgets BUILT FOR EVERY DIVER Recreational, technical, freediver or snorkeler — multi-cylinder, nitrox and trimix, safety stops, and metric or imperial units. YOUR DATA, YOUR RULES No account needed. Works fully offline. Export to UDDF, CSV and PDF anytime — your dive history is never locked in. Premium is available as a monthly or yearly subscription (with a 7-day free trial on the annual plan) or a one-time lifetime unlock. Free features stay free, forever. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://develak.com/privacy-policy/