From the moment you surface to your whole diving history — Ascent keeps it
organized, accurate, and beautiful.
Bluetooth download
Pull your dives straight from your Shearwater — Perdix, Teric,
Peregrine and more — over Bluetooth. No cables, no desktop app.
Map-first logbook
Every dive is pinned to the map, so your logbook reads like a
travelogue of everywhere you've been underwater.
Full dive profiles
See each dive exactly as your computer recorded it — depth over time,
with temperature, NDL, gradient factor, and CNS overlaid.
Gas & deco at a glance
SAC and RMV consumption, gradient factors, and nitrox mixes — computed
and laid out clearly for every dive.
Gear & service reminders
Track your kit and cylinders, with a reminder when a regulator or
piece of gear is due for service.
Certifications
Keep every agency certification on hand — card number, instructor, and
dive shop, all in one place.
Dive insurance
Store your dive insurance details and reach your provider's emergency
hotline with a single tap.
Private iCloud sync
Your whole logbook syncs across your devices through your own private
iCloud. No account, nothing on our servers.
Yours to keep
Your data is yours — import and export your full history as UDDF, with
no lock-in. Switch logbooks anytime.
One-time Pro
Free for your first 20 dives. Unlock unlimited with a one-time Pro
purchase — no subscription, ever.
iPhone dive log for Shearwater computers