Bottomtime vs Freediving.studio

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/

The freediver's logbook, coach and studio — the same account as freediving.studio on the web. IMPORT & LOG • Import .FIT files from Garmin and Suunto dive watches • Apple Watch Ultra: import the dives it records straight from Apple Health • Every dive charted: depth, speed, heart rate and temperature, sample by sample • Notes, dive sites, disciplines and favourites — your logbook, organised ANALYSE LIKE A COACH • Descent/ascent speed analysis with adjustable smoothing • Stroke detection with tunable sensitivity • Compare dives, measure any segment, inspect any moment • Automatic dive insights — computed on your device from your own dives TRACK PROGRESS • Personal bests and trends across every discipline • Depth, time and distance progress at a glance TRAIN • CO₂ and O₂ tables built from your max static hold • Guided breath-hold player with clear phase cues • Live heart rate from a Bluetooth strap, or AirPods/Apple Watch via Apple Health (PRO) • Dry static training only — always follow proper safety practice FILM IT • Overlay real dive stats on your footage — depth ticking, heart rate, speed • Multi-clip timeline with trims, fades and a draggable overlay • Export and share Freediving is dangerous. This app is a record-keeping and analysis tool, not a safety device. Never dive alone. Optional PRO subscription (auto-renews monthly, cancel anytime): Terms of Use: https://www.freediving.studio/terms Privacy Policy: https://www.freediving.studio/privacy