TerraGrid: MGRS Tactical GPS

TerraGrid is precision land navigation for soldiers, hunters, search & rescue teams, surveyors and serious outdoors people. Your grid, your compass and your waypoints, working 100% offline. WHAT'S DIFFERENT • Real datum support: ED50, NAD27, NAD83, OSGB36, Tokyo, Pulkovo 1942 and custom 3/7-parameter transforms, plus local 3° Transverse Mercator grids that match legacy 1:25,000 map sheets. • On-device AI field assistant (iOS 26+): "drop a rally point 100 m north of me", fully offline. • Apple Watch, AR finder and Live Activities: your grid on your wrist, waypoints in your camera view, range on your lock screen. COORDINATES & DATUMS — MGRS, UTM, USNG, DD, DDM, DMS, GEOREF and Maidenhead, from 10 km to 1 m precision — National grids by name: PUWG 1992/2000, Gauß-Krüger, Gauss-Boaga, TUREF, Lambert 93, SWEREF 99, ETRS-TM35FIN, ΕΓΣΑ87, PT-TM06, Lambert 2008 and Japan's plane rectangular…