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Maps · head to head

GRASS GIS vs NEXGEN Asset Management

GRASS GIS logo

GRASS GIS

Maps

Long-running open source geospatial analysis engine for raster, vector and terrain processing

From
Free
Rated
-
Full reviewWebsite
NEXGEN Asset Management logo

NEXGEN Asset Management

Government

Combined EAM and CMMS for utilities and municipalities with Esri GIS at the centre of the asset register

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only GRASS GIS has a free tier, so it costs nothing to try first.
  • Each has a real cost: GRASS GIS the location and mapset data model requires importing data into a structured database with a fixed coordinate system before analysis, which is a real barrier for anyone used to opening files directly.; NEXGEN Asset Management pricing keys off asset count, so a routine GIS resegmentation that splits mains into more records can raise your subscription without adding a single user or work order.
  • They diverge on capability: GRASS GIS covers Raster analysis, NEXGEN Asset Management covers Esri GIS integration.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which GRASS GIS and NEXGEN Asset Management actually diverge.

Attributes where GRASS GIS and NEXGEN Asset Management differ
AttributeGRASS GISNEXGEN Asset Management
Starting priceFreeOn request
Pricing modelOpen source, no licence feequote
Free tierYesNo
PlatformsLinux, Windows, macOSWeb, iOS, Android
CategoryMapsGovernment

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in GRASS GIS

  • Raster analysis
  • Hydrological modelling
  • Terrain analysis
  • Vector topology
  • Temporal framework
  • Image processing
  • Python API
  • QGIS integration

Only in NEXGEN Asset Management

  • Esri GIS integration
  • Risk and criticality
  • Condition assessment
  • Capital planning
  • Work orders
  • Mobile field app
  • Service requests
  • Inventory and purchasing

What people use each for

The jobs each tool is most often brought in to do.

GRASS GIS

  • A hydrologist delineating watersheds and modelling flow accumulation over a large digital elevation modelnot NEXGEN Asset Management
  • A research group building a reproducible time series analysis of satellite imagery that must be rerunnable years laternot NEXGEN Asset Management
  • An environmental agency running viewshed and solar radiation analysis for planning assessments without buying commercial GIS seatsnot NEXGEN Asset Management
  • A QGIS user who needs a specific processing algorithm that only exists in the GRASS toolboxnot NEXGEN Asset Management

NEXGEN Asset Management

  • A water utility that must show a board why a specific main is being replaced this year rather than nextnot GRASS GIS
  • A city public works department consolidating a GIS asset inventory and a paper work order process into one systemnot GRASS GIS
  • An airport authority tracking condition assessments across airside and landside assets with capital forecastingnot GRASS GIS
  • A district that needs citizen service requests to become tracked work orders with an auditable historynot GRASS GIS

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

GRASS GIS

  • The location and mapset data model requires importing data into a structured database with a fixed coordinate system before analysis, which is a real barrier for anyone used to opening files directly.
  • The native graphical interface is dated and inconsistent compared with QGIS or ArcGIS, so most users end up running GRASS through QGIS and never learn the tool they are actually depending on.
  • There is no vendor, so contractual support, service levels and liability do not exist by default and must be arranged with an independent consultancy that may not cover your jurisdiction.
  • Cartographic output and map layout are weak relative to the analysis capability, meaning a second tool is always needed to produce a publishable map.
  • Module naming and argument conventions are idiosyncratic and long-standing, so scripts are durable but the learning curve is steep and transferable skills from other GIS packages help less than expected.

NEXGEN Asset Management

  • Pricing keys off asset count, so a routine GIS resegmentation that splits mains into more records can raise your subscription without adding a single user or work order.
  • Nothing is published and the vendor is small, so the reference set you can call is limited and mostly Californian and North American public agencies.
  • The interface is dated compared with modern CMMS products, which hurts adoption among field crews who compare it to consumer apps on their own phones.
  • GIS integration is the product strength and also its dependency; agencies without a maintained ArcGIS asset layer face a data preparation project before NEXGEN is useful.
  • As a small vendor it carries acquisition risk, and in this segment acquisitions have repeatedly meant a product frozen while it is folded into a larger portfolio.

Pricing, plan by plan

GRASS GIS

Free
  • GRASS GISFree
    • GNU GPL licence
    • All modules included
    • No user or seat limits

NEXGEN Asset Management

On request
  • NEXGEN Asset Management$undefined/year
    • Tiered pricing based on the number of assets under management
    • Implementation, GIS integration and data migration quoted separately
    • Mobile module licensed alongside the core platform

Which should you pick?

Choose GRASS GIS if

  • You need raster analysis.
  • You want to start without paying.
  • You work on Linux, Windows, macOS.
  • You also want hydrological modelling.
GRASS GIS review

Choose NEXGEN Asset Management if

  • You need esri gis integration.
  • You work on Web, iOS, Android.
  • You also want risk and criticality.
NEXGEN Asset Management review

Questions people ask

Is GRASS GIS or NEXGEN Asset Management better?
Neither clearly leads. GRASS GIS starts at Free and NEXGEN Asset Management at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, GRASS GIS or NEXGEN Asset Management?
GRASS GIS has a free tier; the other does not. Paid plans start at Free for GRASS GIS and On request for NEXGEN Asset Management.
Does GRASS GIS or NEXGEN Asset Management run on more platforms?
GRASS GIS runs on Linux, Windows, macOS. NEXGEN Asset Management runs on Web, iOS, Android.
Can I use GRASS GIS for free?
Yes. GRASS GIS has a free tier, so you can try it without paying. NEXGEN Asset Management starts at On request.
What is GRASS GIS best used for?
GRASS GIS is most often used for a hydrologist delineating watersheds and modelling flow accumulation over a large digital elevation model, a research group building a reproducible time series analysis of satellite imagery that must be rerunnable years later, an environmental agency running viewshed and solar radiation analysis for planning assessments without buying commercial gis seats, a qgis user who needs a specific processing algorithm that only exists in the grass toolbox. Of those, a hydrologist delineating watersheds and modelling flow accumulation over a large digital elevation model and a research group building a reproducible time series analysis of satellite imagery that must be rerunnable years later are not what NEXGEN Asset Management is typically brought in for.
What can GRASS GIS do that NEXGEN Asset Management cannot?
GRASS GIS covers Raster analysis, Hydrological modelling, Terrain analysis, Vector topology. NEXGEN Asset Management covers Esri GIS integration, Risk and criticality, Condition assessment, Capital planning.

Answered from the vendors’ own pages

GRASS GIS: Who maintains GRASS GIS?

An international volunteer and academic developer community under the Open Source Geospatial Foundation. It originated at the US Army Construction Engineering Research Laboratory in 1982.

NEXGEN Asset Management: How is NEXGEN priced?

On a tiered model based on the number of assets under management, quoted per agency. Nothing is published.

GRASS GIS: Can I buy commercial support?

Not from a vendor. Independent consultancies in the OSGeo ecosystem offer paid support and development, and availability varies by region.

NEXGEN Asset Management: Do we need Esri ArcGIS?

Not strictly, but the product is designed around it and most of the value assumes a maintained GIS asset layer.

GRASS GIS: Do I need to use its interface?

No. Most people run GRASS algorithms through the QGIS processing toolbox or from Python.

NEXGEN Asset Management: Does it handle capital planning?

Yes. Risk, criticality and condition scores feed multi-year renewal forecasts intended for board and council submissions.

GRASS GIS: Is it suitable for production use?

Yes for analysis pipelines, and it is used by agencies and research institutions. Plan for community support rather than a service level agreement.

NEXGEN Asset Management: Is there a mobile app?

Yes, a map-based field application with offline capability, licensed alongside the core platform.

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