Dive logging for Shearwater

Every dive,
beautifully logged.

Pull every dive straight off your Shearwater over Bluetooth and turn it into a map-first logbook — depth profiles, gas and deco stats, gear and certifications, synced privately across your devices.

Coming soon to the App Store

Now in beta for iPhone.

Take a closer look

Real dives logged with Ascent — from a week of diving in Belize.

Map view showing logged dives across the Belize barrier reef — Map-first logbook

Every dive in detail

Lifetime stats: depth distribution, gas mix, and average SAC — Lifetime stats

Gear bag listing BCDs, regulators, dive computers, and suits — Your gear bag

Dive insurance details with one-tap emergency dial to DAN — Insurance & emergency dial

Connect screen for downloading dives from a Shearwater over Bluetooth — One-tap Bluetooth sync

Ascent Pro upgrade: one-time purchase, no subscription — One-time Pro, no subscription

Everything in your logbook

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 depth profiles

See each dive exactly as your computer recorded it — depth over time, with every detail that matters.

Gas & deco at a glance

SAC and RMV consumption, gradient factors, and nitrox mixes — computed and laid out clearly for every dive.

Gear & certifications

Track your kit and agency certifications — and get a reminder when a regulator or piece of gear is due for service.

Private iCloud sync

Your whole logbook syncs across your devices through your own private iCloud. No account, nothing on our servers.

Import and export with UDDF — your data is always yours. Free for your first 20 dives; unlock unlimited with a one-time Pro purchase.