Apps like Grid Reference OS

Here are some great alternatives to Grid Reference OS by Torvus Consultants :
OS Locate
OS Locate
★4.2
Altimeter
Altimeter
★4.5
Grid Ref UTM
Grid Ref UTM
★4.1
OutDoors GPS - Offline OS maps
OutDoors GPS - Offline OS maps
★4.0
Grid Square Locator
Grid Square Locator
★4.4
Grid Square
Grid Square
★4.6
Hawk Map GPS-GIS
Hawk Map GPS-GIS
★4.5
Land Calculator: Map Measure
Land Calculator: Map Measure
★4.0
Coordinates - GPS Formatter
Coordinates - GPS Formatter
★3.7
Great Britain Topo Maps
Great Britain Topo Maps
★4.4
WGS84 Converter
WGS84 Converter
★4.0
Drawing Grid
Drawing Grid
★4.7
Lat/Long & UTM
Lat/Long & UTM
★3.3
Compass & Altimeter
Compass & Altimeter
★4.5
UTM Geo Map
UTM Geo Map
★4.6
UTM Location
UTM Location
★5.0