Blue Marble Geographics vs GRASS (2026): Pricing, Features & Verdict
Blue Marble Geographics is our pick, scoring 6.6/10 against 6.5/10 for GRASS on our Industrial & Infrastructure Software criteria. Its biggest advantage: higher Ease of Use score (6/10 vs 3/10). For 10 users, Blue Marble Geographics and GRASS are both free; both Blue Marble Geographics and GRASS have a free plan.
Last updated: November 2026
Blue Marble Geographics
6.6/10
Blue Marble Geographics makes geospatial software. Its products are Global Mapper for desktop GIS and LiDAR processing, Geographic Calculator for coordinate conversion, and the Avenza Maps offline field app.
GRASS
6.5/10
Free, open-source geospatial processing engine for raster, vector, imagery, lidar and time-series analysis, used by researchers, governments and engineering teams.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 6.6/10 | 6.5/10 |
| Integration | 8/10 | 7/10 |
| Security | 5/10 | 4/10 |
| Support | 6/10 | 4/10 |
| Cost | 8/10 | 10/10 |
| Analytics | 7/10 | 9/10 |
| Ease of Use | 6/10 | 3/10 |
| Customization | 7/10 | 9/10 |
| Scalability | 5/10 | 7/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | Contact for pricing | Contact for pricing |
| Estimated cost for 10 users | Free Avenza Maps Free | Free Open source |
| Features | ||
| Drone Inspection | ||
| GIS and Mapping | ||
| LiDAR Processing | ||
| Offline Field App | Not listed | |
| Spare Parts Inventory | Not listed | |
| Work Orders | Not listed | |
Blue Marble Geographics vs GRASS cost by team size
Blue Marble Geographics and GRASS cost the same at every team size we checked.
| Team size | Blue Marble Geographics | GRASS |
|---|---|---|
| 1 user | FreeAvenza Maps Free | FreeOpen source |
| 5 users | FreeAvenza Maps Free | FreeOpen source |
| 10 users | FreeAvenza Maps Free | FreeOpen source |
| 25 users | FreeAvenza Maps Free | FreeOpen source |
| 50 users | FreeAvenza Maps Free | FreeOpen source |
The plan that fits each team size, billed monthly, before add-ons and usage charges. Each cost opens that tool's pricing calculator for the team size.
Who Blue Marble Geographics and GRASS suit
Blue Marble Geographics fits engineering firms and utilities better than GRASS.
| Audience | Blue Marble Geographics | GRASS |
|---|---|---|
| Engineering Firms | 8/10It handles terrain, lidar and breakline extraction, and it supports precise geodetic transformations. | 6/10It offers strong hydrology, terrain, and lidar analysis, but has no design or asset features, and staff must learn command-line workflows. |
| Utilities | 6/10It offers AI extraction of power lines and vegetation, but it has no tools for managing assets. | 4/10It is useful for terrain and network analysis, but has no utility asset registry, field apps, or maintenance workflows. |
| Government | 7/10It supports a wide range of formats, and Blue Marble publishes pricing for government purchasing such as Texas DIR. | 8/10It came from US Army land management work and is used for environmental and terrain modeling, at no licence cost. |
| Consultancies | Not rated | 7/10Environmental and geospatial consultancies can run reproducible analyses without paying licence fees. |
| Developers | Not rated | 8/10Python, C, and R APIs, JSON output, and the new grass.tools package make it easy to embed in pipelines. |
| Drone Service Providers | 8/10It produces point clouds, orthoimagery and 3D models from drone imagery, and it has lidar QA tools. | Not rated |
| Education | Not rated | 9/10Universities such as NC State help develop it, and it is free with extensive tutorials and Jupyter support. |
| Field Teams | 7/10Avenza Maps provides offline GPS maps and data collection that sync back to the office. | Not rated |
Which One Should You Choose?
Why choose Blue Marble Geographics
- Higher Ease of Use score (6/10 vs 3/10)
- Higher Support score (6/10 vs 4/10)
- Better fit for utilities (6/10 vs 4/10)
- Better fit for engineering firms (8/10 vs 6/10)
Why choose GRASS
- Higher Cost score (10/10 vs 8/10)
- Higher Analytics score (9/10 vs 7/10)
Pros & Cons
Blue Marble Geographics
Pros
- Global Mapper reads and writes more than 300 spatial formats, and none of them need an extra license.
- Lidar classification, cleanup and feature extraction come in a desktop tool that costs far less than enterprise GIS suites.
- The GeoCalc geodetic engine includes more than 12,000 definitions and time-dependent transformations, which suits survey-grade work.
- Since the Avenza merger, field data from the Avenza Maps offline app flows back into Global Mapper for analysis.
Cons
- It is not an asset management or maintenance system. There are no work orders, maintenance scheduling or condition monitoring.
- Licensing has changed recently, and third-party listings show conflicting perpetual and subscription prices.
- Global Mapper is a Windows desktop tool, so collaboration across teams is limited compared with cloud GIS platforms.
GRASS
Pros
- Free under the GPL with no user or seat limits, so it can be installed across a whole organisation at no cost.
- Very deep analysis toolset, with more than 500 core tools for hydrology, terrain, 3D voxel, imagery classification, and spatio-temporal analysis.
- Highly scriptable through Python (including the new grass.tools API in 8.5), Jupyter, R via rgrass, and JSON output, which suits automated pipelines.
- Runs inside QGIS through the Processing toolbox, so QGIS users can call GRASS tools without switching applications.
- Version 8.5 parallelized r.mapcalc and added OpenMP to more tools, which speeds up large raster jobs on multi-core machines.
- Over four decades of continuous development, with an active release schedule and NumFOCUS fiscal sponsorship.
Cons
- Reviewers on Capterra and GISGeography report a steep learning curve and a clunky interface with awkward toolbar placement.
- Cartographic layout is weak. GISGeography calls it unsuitable for producing finished maps.
- Its project and location structure ties each project to a single coordinate system, unlike the on-the-fly reprojection in QGIS or ArcGIS.
- No vendor service-level agreement. Support comes from community forums or from third-party firms whose prices are not published.
- It has no asset registry, work orders, mobile field app, or maintenance features for infrastructure operations.
Not sold on either?
Air Inspection Automation (AiA)Our product
Plans DJI drone inspection missions for power line towers from LiDAR scans: it finds the towers, places photo stops, checks clearance, and splits the route into battery flights.
Made by the team behind b stack radar. Shown here because it fits this topic. It is not part of our rankings. How we rank tools
Frequently Asked Questions
Blue Marble Geographics scores higher on our Industrial & Infrastructure Software criteria: 6.6/10 against 6.5/10 for GRASS. The largest gap is in Ease of Use: 6/10 for Blue Marble Geographics and 3/10 for GRASS.
Both are free for 10 users.
Yes, both Blue Marble Geographics and GRASS have a free plan.
Blue Marble Geographics is the better fit for engineering firms: we rate it 8/10 for them, against 6/10 for GRASS.
