MGRS GPS: Grid & Land Nav

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.