Alpin: Avalanche Inclinometer

Alpin turns your iPhone into three simple tools for the backcountry.

INCLINOMETER
Line the black guide-line up with the slope you intend to ski and read the angle. The
indicator changes color to show when you are looking at avalanche-prone terrain.

SLIDE ZONE
Aim the crosshairs at the top of the slope above you to judge whether you are standing
somewhere an avalanche could reach — while your partner is skiing, for instance. The
indicator changes color as the exposure increases.

WAYFINDING
Elevation, coordinates, and compass heading at a glance.

SETTINGS
Choose metric or imperial, and decimal or degrees/minutes coordinates. Alignment
assistance guides your phone into a correctly-oriented position so the reading is honest.

PRIVACY
Alpin has no account and no servers. Location, camera, and motion are read on your device
and never stored or transmitted. Nothing leaves your phone.

IMPORTANT
Alpin is not a substitute for avalanche education, the forecast, or your rescue gear
(beacon, probe, shovel). Use it as a quick spot-check alongside your own judgement — not
as the basis for decisions in the field. Use at your own risk.