ArcGIS StoryMaps vs GRASS GIS

ArcGIS StoryMaps is a web-based tool for sharing maps, apps, and multimedia as narrative content. Authors can create stories, slide-based briefings, mobile-first frames, and collections with reusable themes. The builder supports configured 2D web maps and 3D web scenes, as well as ArcGIS apps created by organization members. Stories can draw on existing ArcGIS maps and scenes, Esri demographic and lifestyle data, and curated ArcGIS Living Atlas maps. Published items can be shared with an organization, selected groups, or everyone; organization members can co-author through groups. Changes save automatically, and authors can republish edits when ready. Creator, Professional, and Professional Plus user types provide full storytelling capabilities; Viewer, Contributor, and Mobile Worker can view shared content but cannot create it. Public accounts are free, with usage limits and some advanced features unavailable. A free plan and a 21-day trial are listed. ArcGIS StoryMaps is also included with ArcGIS Enterprise starting at version 10.8.1, including deployment in disconnected environments.

GRASS GIS is a geospatial processing system for raster, vector, and other geographic data, including terrain, ecosystem, hydrology, data management, and imagery work. It contains more than 500 modules for processing and rendering geographic data, with tools for 3D voxel, temporal, image-processing, and spatial-statistics tasks alongside raster, terrain, hydrological, and vector analysis. Through GDAL-OGR, it supports nearly all common GIS file formats. Interfaces include a graphical user interface, command line, C API, Python, Jupyter Notebook, and WPS. GRASS integrates with QGIS and R and provides PostgreSQL and SQLite database interfaces; its official Addons repository has more than 300 extensions. It is free and open source under GPL (>=v2), with no warranty. The listed platforms include Linux, macOS, Windows, API, web, and self-hosted deployment. Prebuilt macOS applications are signed and notarized. Support includes a worldwide community as well as commercial consulting, training, and custom development.