Altimy-GPS Compass Altimeter

Altimy is a professional outdoor altimeter and compass app for hikers, mountaineers, and outdoor enthusiasts. No ads. No subscriptions. No data collection. Just pure, reliable data.
Real‑Time Altitude
Barometric pressure sensor delivers precise altitude readings. Automatic fallback to GPS altitude when barometer is unavailable. Switch between feet and meters.
GPS Location
Precise latitude and longitude in DMS or decimal format. Real‑time speed tracking and horizontal accuracy display.
Barometric Pressure
Live atmospheric pressure in kPa, mBar, atm, or mmHg. Perfect for weather monitoring and altitude calibration.
Electronic Compass
360 degree rotating compass dial with magnetic north heading. Full‑screen Apple‑style compass view with degree markings, cardinal directions, and haptic feedback at every 30 degree interval.
Sunrise and Sunset
Automatic calculation based on your GPS location. Plan your hikes with confidence.
Map Card (Premium)
Static map snapshot of your current location with dark mode and zoom controls.
Night Mode
Auto‑switching based on sunrise and sunset times, or manual toggle. Protects your night vision.
Totally Offline
All sensor data processed entirely on your device. No internet required. Your data never leaves your device because we have no servers.
Premium (One‑Time Purchase)
Lifetime access. No subscriptions. Ever.
Includes profile display with avatar and nickname, and map card with zoom controls.
Privacy First
We do not collect your data. We cannot, because we have no servers. All GPS, barometer, and compass data stays on your device.
Perfect For
Hiking, mountaineering, camping, trail running, backpacking, orienteering, geocaching, outdoor photography, and field research.
Download Altimy and turn your iPhone into a precision outdoor instrument.