GPSense — GPS Test & Status

GPSense shows everything your iPhone knows about its position, clearly, on one screen. Check the quality of your GPS fix before you rely on it on a hike, at sea or in the field. STATUS • Fix status (3D / 2D / no fix) with the reason when there is no fix • Horizontal accuracy and an estimated source: GNSS, Wi‑Fi or cell • Coordinates in decimal degrees, degrees‑minutes‑seconds, degrees‑decimal‑minutes, UTM and MGRS. Tap to copy, or share. • Altitude above sea level with ± accuracy, plus ellipsoidal altitude • Speed with session maximum, course with cardinal direction • GPS time in UTC, age of fix and update rate • Barometric pressure and vertical speed (on iPhones with a barometer) WORLD • Borders‑only world map with the live day/night terminator and the sun’s position • Your time zone highlighted, local and UTC clocks, today’s sunrise and sunset COMPASS • Rotating dial with true or magnetic north, heading accuracy and a calibration hint • Course arrow when you are moving SETTINGS • Metric, imperial or nautical units • Keep screen awake, light/dark appearance PRIVATE BY DESIGN No accounts, no ads, no analytics, no network access. Your location never leaves your device. HONEST ABOUT THE PLATFORM iOS does not give apps satellite counts, signal strengths or raw GNSS data. GPSense shows only what iOS really provides and never invents satellite numbers. The About screen explains what is measured and what is inferred.