Real-time decompression, ascent and safety alarms on your wrist — with a full logbook, deco planner, and safety toolkit on your iPhone. Built for certified divers.
Everything a serious diver needs, computed on-device and stored in your own iCloud — no accounts, no servers.
Depth, no-stop time, decompression ceiling and stops, ascent-rate meter, tissue loading, and haptic alarms — designed to read at a glance underwater.
Every dive with an interactive depth profile, map, marine life, photos, and gear. Import your entire dive history from Apple Health.
Multi-gas, gradient-factor decompression planning with gas, MOD and ppO₂ checks — for divers who plan the dive and dive the plan.
An automatic analysis of each dive — ascent discipline, safety-stop quality, thermal exposure — computed privately on your device, free.
Divers Alert Network contacts, a DCS symptom checklist, GPS-coordinate relay, and a post-dive no-fly guard with airport-proximity alerts.
No backend, no ads, no tracking. Your dives, health and location data stay on your devices and in your private iCloud.
Oceanograph is a precision instrument for trained divers — not a substitute for training, judgement, or redundant equipment.