Checked November 1, 2026 against each app's App Store listing. Features change, so check the listing before you buy.
| Gridmark | MilGPS | |
|---|---|---|
| Price | One purchase, no subscription | One purchase, no subscription |
| Track record | Released October 2026, no ratings yet | 4.8 stars from over 5,500 US ratings |
| Grid formats | MGRS, USNG, UTM, lat/long, OS National Grid | MGRS, USNG, UTM, lat/long, OS National Grid |
| Route planning | Yes, with legs, distances and azimuths | Listed as not included yet |
| Track recording | Yes, with retrace | Listed as not included yet |
| Online maps | Apple Maps | Apple and Google maps |
| Offline maps | USGS downloads (US), plus your own MBTiles, georeferenced PDF and GeoTIFF | Your own raster MBTiles |
| Files | GPX, KML and CSV, with a preview before import | GPX waypoints; limited KML and CSV |
| Apple Watch | Yes | No Watch support listed |
| Mac | Coming soon, same purchase | Not found in the Mac App Store |
Choose MilGPS if
- You want the app with years of field use and thousands of ratings behind it.
- You want Google maps in the app.
- You navigate point to point and don't need routes or tracks.
Choose Gridmark if
- You plan routes, record tracks or want to check terrain along the way.
- You want to download USGS maps in the app, or import PDF and GeoTIFF maps.
- You want to work on your Apple Watch and, soon, your Mac.
MilGPS is a product of its own developer. Tempore isn't affiliated with it, and the name is used only to compare the two apps.
See more about Gridmark or try the free MGRS converter.