It’s giving altitude 🪂
A barometric backup that reacts the instant you leave the plane – a big AGL readout, automatic zeroing, a DZ arrow, and an automatic jump logbook.
Made for the sky
Consumer altimeters are built to be smooth. Skydiving needs the opposite — a number that reacts the instant you leave the plane.
AltiFenix reads the raw pressure sensor and auto-zeros to the ground, tracking the fall in real time — a live, honest AGL from exit to landing.
Everything on your wrist
Every screen below is the real app, running on a fēnix 8.
AGL in the L&B Viso format — kilometers up high, meters down low, switching automatically at 1,000 m. Readable at a glance under stress.
Read it your way — the same jump in metric or imperial, set once and forgotten. That 4.20 km reads 13.8 up top, feet all the way down.
No fiddling on the load. AltiFenix finds ground level automatically and holds it — even if you forget to open the app before takeoff.
It picks your drop zone from your location automatically, so every jump is logged under the right DZ name.
Landing area higher or lower than takeoff? Dial in an offset and the readout shows true AGL for the landing area — with a clear OFS badge so you never forget it's on.
Vibration alarms you set per phase — climb, freefall, canopy. A pulse on the wrist at break-off, at your hard deck, wherever you want one.
Every jump logs itself: exit and deployment altitude, freefall time, canopy time, and a running lifetime count — no buttons to press.
The exact numbers a manifest desk asks for at registration — jumps today, this year, and lifetime, plus your last-jump date. One button on the ground; no paper logbook to dig through.
Already have thousands of jumps? Set your next jump number once and the logbook picks up exactly where your paper log left off — your lifetime total stays true from jump one.
Scrub the whole descent after the jump — altitude and vertical speed over time, exit to deployment, right on the watch.
A dedicated wingsuit mode with its own detection, so a mellow flocking exit still logs as the flight it was — not a missed skydive.
Once you’re open, the readout adds your vertical speed — spot a fast spiral or a long spot at a glance on final.
One glance in the air
The in-air screen layers the awareness you want without ever crowding the altitude.
And the small things that matter
AltiFenix is a backup and awareness aid. Always jump a certified visual altimeter, an audible, and an AAD. Barometric readings can lag or be wrong — the responsibility for your dive stays yours.
Garmin doesn’t allow skydiving apps in the Connect IQ store, so AltiFenix is installed directly — independent, and answerable only to the jumpers who use it. Setup takes a couple of minutes over USB; the guide walks you through it.
Simple
Not for sale just yet — we’re finishing the beta and lining up the launch. Get on the list and you’ll be first to jump it.
From a skydiver, for skydivers
I'm Alex Nemish, a wingsuit pilot. I built AltiFenix because I wanted an honest altitude number on the watch I already wear. It's the app I jump with myself.
Get on the list
Leave your email and we’ll reach out — a beta invite now, or a nudge the day it launches. No spam, no noise.