Google Fusion Table tool
Yes
-
No
registration needed
beginner
Yes
Yes
Yes
Yes
GPS Essentials
Data gathering
Yes
Free
No
registration needed
beginner
Yes
Yes
Yes
Yes
IDRISI
GIS processing
No
> 1,250
No
restricted, registration needed
advanced
Yes
No
No
Yes
Locus Maps
Data gathering
Yes
Free, in-app purchases
No
registration needed
beginner
Yes
Yes
Yes
Partially
Marxan
DecisionMaking
Yes
Free
Yes
unrestricted
intermediate
Yes
Yes
OpenStreetMap
GIS processing
Yes
Free
Yes
unrestricted
beginner
Yes
Partially
Oruxmaps (extension of ArcGIS)
Same as OpenStreetM Same ap
Free
Same
registration needed
intermediate
Yes
Yes
QGIS
Analyze, save, process, visualize
Yes
Free
Yes
unrestricted
intermediate
Yes
Yes
Survey123 (extension of ArcGIS)
Data gathering
No
Free
No
registration needed
beginner
Yes
Yes
Grass GIS
GIS processing
Yes
Free
Yes
unrestricted
advanced
Yes
Yes
Landsat
Satellite Imagery
Yes
Free
No
registration needed
intermediate
Yes
Yes
Yes
Partially
Yes
Yes
Partially
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