Apps like GeoExplore

Here are some great alternatives to GeoExplore by BrooksDesigns :
Rockd
Rockd
★4.2
Geology Toolkit Lite
Geology Toolkit Lite
★4.3
Flyover Country - Inflight GPS
Flyover Country - Inflight GPS
★4.5
Geology Toolkit Premium
Geology Toolkit Premium
★4.5
pLog Tablet
pLog Tablet
★4.0
Natural Atlas: Trail Map & GPS
Natural Atlas: Trail Map & GPS
★3.7
PointMan: GIS Utility Mapping
PointMan: GIS Utility Mapping
★4.1
Mapit GIS - Map Data Collector
Mapit GIS - Map Data Collector
★4.0
AndMeasure (Area & Distance)
AndMeasure (Area & Distance)
★4.3
Retrace
Retrace
★4.9
Gps Area Calculator
Gps Area Calculator
★4.0
GoSpotCheck
GoSpotCheck
★4.2
LD-Log Lite - GPS Logger
LD-Log Lite - GPS Logger
★4.4
TraveLog - Travel Journal
TraveLog - Travel Journal
★3.2
Rock Identifier: Stone ID
Rock Identifier: Stone ID
★4.5
Get Point - GPS
Get Point - GPS
★4.0