One map. Many ways. Professional offline-first field GIS for iOS and Android. Bring your own GeoPDF/GeoTIFF maps, work with KML/KMZ/GPX, record GPS tracks, plan routes and explore them in 3D. Collect structured field data with templates, use UTM/MGRS and connect fieldwork to GIS workflows. External GNSS support is in Beta; compatibility varies. Available in 15 languages. Free to start; advanced features depend on your plan.