PostGIS: Spatial database extension for PostgreSQL. SAGA GIS: Free GIS with a large library of terrain and raster analysis tools.
| PostGIS | SAGA GIS | |
|---|---|---|
| Category | Spatial Analysis & GeoAI | Desktop GIS |
| Pricing model | Open source | Open source |
| Starts at | Free | Free |
| Free tier | — | — |
| Open source | Yes | Yes |
| Software licence | GPL-2.0 | GPL |
| API | — | — |
| Platforms | Linux, Windows, macOS | Windows, Linux |
| Made by | — | — |
| Commercial use | Allowed | Check terms |
| Export / print images | Allowed | Check terms |
| Offline / caching | Allowed | Check terms |
| Visits from MapTools | 3 | 10 |
| Visit | Visit |
PostGIS features
- Geometry, geography and raster types
- Spatial indexes
- Hundreds of ST_ functions
- Topology and routing (pgRouting)
SAGA GIS features
- Terrain analysis
- Raster processing
- Large tool library
- Scripting
Summary based on public information. Check each provider's current pricing and terms.