Find cell coverage in the wilderness. Cairn. Crowdsourcing a safer outdoors.
Use Cairn and contribute to the crowdsourced coverage map of the outdoors. Help others get home safely.
See where to find service before you go and on the trail.
SHARE YOUR PLANS
Tell your emergency contacts where you’re headed with just a few taps.
If you're overdue, your contacts will receive a map of the spots where we’ve tracked you.