GRASS vs UgCS (2026): Pricing, Features & Verdict
GRASS and UgCS both score 6.5/10 on our Industrial & Infrastructure Software criteria. For 10 users, GRASS and UgCS are both free; both GRASS and UgCS have a free plan.
Last updated: November 2026
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.
UgCS
6.5/10
UgCS is desktop drone flight-planning and control software from SPH Engineering. Survey, LiDAR, geophysics and inspection teams use it across DJI, ArduPilot, PX4 and other drone platforms.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 6.5/10 | 6.5/10 |
| Integration | 7/10 | 8/10 |
| Security | 4/10 | 6/10 |
| Support | 4/10 | 6/10 |
| Cost | 10/10 | 7/10 |
| Analytics | 9/10 | 4/10 |
| Ease of Use | 3/10 | 6/10 |
| Customization | 9/10 | 8/10 |
| Scalability | 7/10 | 7/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | Contact for pricing | Contact for pricing |
| Estimated cost for 10 users | Free Open source | Free UgCS Open |
| Features | ||
| Drone Inspection | ||
| GIS and Mapping | ||
| LiDAR Processing | ||
| Inspection Automation | Not listed | |
| Offline Field App | Not listed | |
| Spare Parts Inventory | Not listed | |
| Work Orders | Not listed | |
GRASS vs UgCS cost by team size
GRASS and UgCS cost the same at every team size we checked.
| Team size | GRASS | UgCS |
|---|---|---|
| 1 user | FreeOpen source | FreeUgCS Open |
| 5 users | FreeOpen source | FreeUgCS Open |
| 10 users | FreeOpen source | FreeUgCS Open |
| 25 users | FreeOpen source | FreeUgCS Open |
| 50 users | FreeOpen source | FreeUgCS Open |
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 GRASS and UgCS suit
| Audience | GRASS | UgCS |
|---|---|---|
| Engineering Firms | 6/10It offers strong hydrology, terrain, and lidar analysis, but has no design or asset features, and staff must learn command-line workflows. | 7/10Surveyors and geophysicists can use terrain following, custom DEMs and geophysics mission types. |
| Consultancies | 7/10Environmental and geospatial consultancies can run reproducible analyses without paying licence fees. | Not rated |
| Developers | 8/10Python, C, and R APIs, JSON output, and the new grass.tools package make it easy to embed in pipelines. | Not rated |
| Drone Service Providers | Not rated | 9/10It is built for planning professional survey, LiDAR and inspection flights across many drone brands. |
| Education | 9/10Universities such as NC State help develop it, and it is free with extensive tutorials and Jupyter support. | Not rated |
| Energy Companies | Not rated | 7/10The vendor names energy companies as a target, and it supports corridor and inspection missions. |
| Field Teams | Not rated | 7/10It runs fully offline, and UgCS Cloud can push routes to field crews. |
| Government | 8/10It came from US Army land management work and is used for environmental and terrain modeling, at no licence cost. | Not rated |
| Utilities | 4/10It is useful for terrain and network analysis, but has no utility asset registry, field apps, or maintenance workflows. | Not rated |
Which One Should You Choose?
Why choose GRASS
- Higher Analytics score (9/10 vs 4/10)
- Higher Cost score (10/10 vs 7/10)
Why choose UgCS
- Higher Ease of Use score (6/10 vs 3/10)
- Higher Security score (6/10 vs 4/10)
Pros & Cons
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.
UgCS
Pros
- Works with more than 100 drone platforms, including DJI, Autel, Freefly and ArduPilot or PX4, which avoids lock-in to one vendor.
- Runs fully offline with cached maps and imported elevation models, which helps on remote survey sites.
- Has dedicated LiDAR tools such as IMU calibration legs, loop turns and scan pattern control.
- Splits large areas automatically into flyable sub-areas and resumes missions after battery swaps.
- The free Open edition lets pilots test the full planning toolset at no cost.
Cons
- Paid license prices differ between the official shop and resellers, which makes budgeting harder.
- The free Open tier is capped at two routes a day of 250 m each.
- There are few independent user reviews on G2 and similar sites.
- It covers flight planning and control only. Asset records, work orders and maintenance tracking need other tools.
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
GRASS and UgCS both score 6.5/10 on our Industrial & Infrastructure Software criteria. The largest gap is in Analytics: 9/10 for GRASS and 4/10 for UgCS.
Both are free for 10 users.
Yes, both GRASS and UgCS have a free plan.
