GPS Metrics

Turn your iPhone into a precise GPS instrument: live speed, altitude, heading and position, a colour‑coded track, and NMEA output to any device on your network.

GPS Metrics is your compact and accurate companion on the move. See live speed, altitude, course and more, visualize your track on the map with color by speed, export GPX/KML, and send NMEA sentences over your local network to other devices or software.

Highlights: • Live metrics: speed, (barometric) altitude, climb/descent rate, course, rate of turn, heading (true/magnetic), horizontal/vertical accuracy and timestamp. • Map with speed trail: track segments are color‑coded by average speed. • Export: save your trip as GPX or KML. • NMEA output: send RMC, GGA, GSA, VTG and GLL via TCP server or UDP sender (local network). • Coordinates: choose DD, DM, DMS, UTM or MGRS. • Units: metric or imperial. • Averaging window: smooth speed and climb/descent with a configurable time window. • Battery friendly: enable “Battery Saving Mode” to use significant‑change updates. • Keep screen awake during your trip. • Theme: follow system or pick light/dark.

Privacy • Your location stays on your device unless you explicitly export or enable NMEA output to a device you choose on your local network. No account, no tracking, no ads.

Requirements • Location permission is required for metrics and track. Local Network permission is required for NMEA output.

No subscription! No tracking! No ads!