SW Maps - GIS Data Collector
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A free app for Android, by Softwel.
SW Maps - GIS Data Collector is a free, versatile, mobile GIS app. It can be used for a wide range of mapping and geospatial purposes. It is capable of collecting location data and attribute information.
The app supports a wide variety of map types, including Google Maps, Open Street Map, National Geospatial-Intelligence, and more. It also offers compatibility with various measurement types, such as distance, area, and area density.
In addition to mapping and data collection, SW Maps - GIS Data Collector can be used for location discovery, navigation, and other geospatial purposes. It has a PROJ.4 library that supports many map types and measurement types, allowing users to import data from a PROJ.4-supported map.
The app provides the ability to record and share data, as well as export data to formats such as KMZ, shapefiles, and GeoJSON.