Gas planning, decompression, weighting, your Shearwater's log and your dive videos. Built by a diver. No accounts, no ads, no tracking.
Time to Surface
Trimix & nitrox decompression planner
Technical dive and gas planner for up to 56 metres: six bottom gases, one deco bottle, Bühlmann ZH-L16C with your own gradient factors, up to three dives before this one. Free, offline, no account.
Add a dive's videos and the app does the rest: colour restored, the best moments trimmed and put in order, music under them. Nothing is uploaded. Free for two reels a day, on iPhone and Mac.
Every dive from your Shearwater, drawn in full: depth, temperature, stops, gas switches and time to surface, as the computer recorded them. Over Bluetooth, no cable. Free, private, no account.
In App Review. The link works the day Apple approves it.
Turn Pressure
Scuba gas & no-deco calculator
Recreational dive planner: turn pressure, minimum gas and bottom time for the dive you're actually doing — not a flat 50 bar. Your own SAC rate, repeat dives, a dive log. Free, offline, no account.
Your rig, your lead, your water — a library instead of memory. The balance drawn at depth, estimates until you record a weight check, then your own numbers. Free, offline, no account.