OfflineMaps is a general off-line mapping application for Android.
Online help is available here.
AlpineQuest is an improved (and standalone) version of OfflineMaps dedicated to activities requiring off-line maps, like hiking, travelling, etc.
Online help is available here.
| Feature | OfflineMaps | AlpineQuest Lite | AlpineQuest Explorer | 
|---|---|---|---|
| Google Play Store install | Google Play | Google Play | Google Play | 
| Alternative install | APK installer | PayPal | |
| Free to install | Yes   | Yes   | No   | 
| No ads | Yes   | Yes   | Yes   | 
| General | |||
| Advanced location formats and grids | Yes   | No   | Yes   | 
| Workspaces | Yes   | No   | Yes   | 
| Display and store elevations (DEM) | In-app purchase   | No   | Yes   | 
| On-demand maps | |||
| Store maps for offline use | Yes   | Yes   | Yes   | 
| Create favorite map sets | Yes   | Yes   | Yes   | 
| Check coverage of stored data | Yes   | Yes   | Yes   | 
| Use only stored data mode | Yes   | Yes   | Yes   | 
| Store complete areas for offline use | Yes   | No   | Yes   | 
| Add maps from the community | Yes   | No   | Yes   | 
| File based maps | |||
| Display AQM/PGD maps | In-app purchase   | Yes   | Yes   | 
| Display GeoPackage raster maps | In-app purchase   | No   | Yes   | 
| Display MemoryMaps QCT maps | In-app purchase   | No   | Yes   | 
| Display OziExplorer maps | In-app purchase   | No   | Yes   | 
| Display CompeGPS Raster maps | In-app purchase   | No   | Yes   | 
| Display MBTile raster maps | In-app purchase   | No   | Yes   | 
| Display RMaps SQLite maps | In-app purchase   | No   | Yes   | 
| Display zipped tiles | In-app purchase   | No   | Yes   | 
| Import KML/KMZ files (image overlays) | In-app purchase   | No   | Yes   | 
| Calibrate plain images as maps | In-app purchase   | No   | Yes   | 
| Local placemarks | |||
| Waypoints and picture waypoints | Yes   | Yes   | Yes   | 
| Custom icons | Yes   | Yes   | Yes   | 
| Search places | Yes   | Yes   | Yes   | 
| Sets, routes, tracks and areas | Yes   | No   | Yes   | 
| Statistics on tracks | Yes   | No   | Yes   | 
| Dynamic coloring | Yes   | No   | Yes   | 
| Measure tool | Yes   | No   | Yes   | 
| Auto-routing | Yes   | No   | Yes   | 
| Follow a route or path | No   | No   | Yes   | 
| Proximity alerts | No   | No   | Yes   | 
| File based placemarks (waypoints, routes, tracks, areas) | |||
| Import/export GPX files | In-app purchase   | No   | Yes   | 
| Import/export KML/KMZ files (placemarks) | In-app purchase   | No   | Yes   | 
| Import/export CSV/TSV files | In-app purchase   | No   | Yes   | 
| Import GeoJSON files | In-app purchase   | No   | Yes   | 
| Import IGC flight data files | In-app purchase   | No   | Yes   | 
| Import WPT/PLT (Ozi) files | In-app purchase   | No   | Yes   | 
| Import LOC (Geocaching) files | In-app purchase   | No   | Yes   | 
| Import ShapeFile SHP files (placemarks) | In-app purchase   | No   | Yes   | 
| Export AutoCAD DXF files | In-app purchase   | No   | Yes   | 
| Online waypoints | |||
| Online waypoints | No   | No   | Yes   | 
| Public waypoints | No   | No   | Yes   | 
| Positioning | |||
| Real-time GPS/Network position on map | Yes   | Yes   | Yes   | 
| Rotate the map based on position | Yes   | Yes   | Yes   | 
| EGM96 elevations | Yes   | Yes   | Yes   | 
| Fully featured track recorder | No   | No   | Yes   | 
| Orientation | |||
| Magnetic compass | Yes   | Yes   | Yes   |