QGIS - QGIS is a desktop geographic information system, or GIS.
Flocknote - Flocknote helps super duper churches with their members.
Esri ArcGIS - ArcGIS provides contextual tools for mapping and spatial reasoning so you can explore data & share location-based insights. ArcGIS is the heart of the Esri Geospatial Cloud. Try ArcGIS for free with 21-day trial.
Rock RMS - Rock RMS is a community supported open-source Church Management System that provides innovative features to churches of all sizes.
Geopointe - Geopointe enables Salesforce users to gain spatial insights via maps and apply geography to business processes.
ChurchSuite - ChurchSuite is a cloud hosted, web-based church management system, ideal church database software for churches.