The problem
I kept wanting to know my exact altitude while hiking. Every option I found was either a bloated native app full of ads and permissions I didn't need, or a website that made me create an account before showing me a single number.
So I built Zirvə — open it, allow location once, get your elevation above sea level in seconds. No install, no account, no ads.
This post is about the two technical decisions that mattered most: how altitude is actually measured, and what happens when there's no signal.
Altitude is harder than it looks
