MGRS GPS: Grid & Land Nav

Now with USGS topo basemaps and offline area downloads, night vision, range rings and military symbols. Apple Watch included. 34 languages. No subscriptions.

MGRS GPS turns your iPhone into a fast, glanceable military grid reference readout — built for soldiers, search-and-rescue teams, hunters, hikers, orienteers, and field researchers who think in grids and often work without a signal.

Your position is shown as a large, high-contrast MGRS grid you can read at arm's length and copy with one tap. Mark waypoints, organize them into color-coded overlays, navigate with a clear bearing-and-distance display, record breadcrumb tracks, and keep working when the cell signal drops.

POSITION, ANY FORMAT • MGRS / USNG military grid reference • UTM / UPS • Latitude / Longitude (decimal, DDM, DMS) • OSGB British National Grid • Show up to three formats at once • Each extra coordinate format can now be shown in its own datum • Coordinate engine validated against GeographicLib conventions

ONE-TAP SHARING • Tap any readout to copy your grid instantly • Share via the system share sheet • Send a waypoint as a QR code • AirDrop waypoints between devices

WAYPOINTS & OVERLAYS • Mark your current location, a map point, or type a grid • Group waypoints into toggleable, color-coded overlays • Draw lines and polygons for routes, sectors, and boundaries • Plan multi-point routes with per-leg distance and bearing • Projected waypoints — create a point from a range and bearing off any origin • Military symbols for friendly, hostile, neutral, and unknown units

MAP WITH A REAL GRID • Smooth, labeled MGRS / UTM grid overlay • Waypoint markers and gentle clustering • Measure ruler reads distance in degrees AND mils • Follow mode keeps your current zoom • Range rings around your position, the map centre, or any waypoint • Area shapes — place a square, rectangle, or circle from a centre point and a size • Night vision — the whole app turns red, map included, with a one-tap switch on the Map screen

NAVIGATE • Big bearing arrow, distance, cross-track, and ETA • True, magnetic, or grid north reference • Offline magnetic declination from an embedded World Magnetic Model (WMM2025) • Arrival alert with haptic feedback

WORKS OFFLINE • Built-in USGS topographic, imagery, and shaded-relief basemaps • Download map areas for offline use — frame a box, pick the detail level, and see the tile count and size before it starts • Offline Maps manager: rename, delete, and see what each area costs on disk • Import your own offline maps (MBTiles raster) • Add your own tile server for coverage outside the US • Core navigation works with no cell signal • Offline indicator so you always know your status

TRACK RECORDING • Record breadcrumb tracks with distance, elevation gain, and time • Export tracks as GPX

IMPORT & EXPORT • Full GPX import / export (waypoints + tracks) • KML and CSV import / export • Open GPX files shared from other apps

APPLE WATCH • Glance at your grid and bearing on your wrist

PRIVATE BY DESIGN • No ads • No subscriptions • No accounts, no cloud sign-in • No analytics SDKs or third-party trackers • Your data stays on your device

MGRS GPS is a one-time purchase — every feature is included. No subscriptions, no in-app purchases, and no ads, ever.

Not certified for aviation, marine, surveying, live-fire, or military operations. Always carry a backup means of navigation.