QGIS is a user friendly Open Source Geographic Information System (GIS) licensed under the GNU General Public License. QGIS is an official project of the Open Source Geospatial Foundation (OSGeo). It runs on Linux, Unix, Mac OSX, Windows and Android and supports numerous vector, raster, and database formats and functionalities.
    

QGIS Desktop

A Free and Open Source Geographic Information System

KADAS Albireo is a mapping application based on QGIS and targeted at non-specialized users, providing enhanced functionalities in areas such as drawing, measuring, terrain analysis, etc.

Kadas Albireo

Mapping application for non-specialized users

Apps in the QGIS group

QGIS Desktop

Kadas Albireo