Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience real numbers from our own analytics — open to see them
–Visitors
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · counted by iTechGuides's own first-party analytics, bots removed, every figure rounded down · how we count

Head-to-head · Groundwater Modeling Software

Watershed Modeling System (WMS) vs MT3D-USGS

  • Updated Sep 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Watershed Modeling System (WMS) #4 in Groundwater Modeling Software 7.6/10 Free plan · paid from $3,990 Free plan✓ 3 of 3 features Visit Aquaveo
MT3D-USGS #8 in Groundwater Modeling Software 6.6/10 Free plan Free plan✓ 2 of 3 features Visit MT3D-USGS

Watershed Modeling System (WMS) leads on 1 check, MT3D-USGS on 0, and 3 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreWatershed Modeling System (WMS) · 7.6/10
  • Free planboth
  • Most featuresWatershed Modeling System (WMS) · 3 of 3

Watershed Modeling System (WMS) scores higher on our rubric for groundwater modeling software: 7.6 against 6.6 out of 10; our editors rank them #4 and #8.

On model dimensions, MT3D-USGS gives you 3d where Watershed Modeling System (WMS) offers 2d. Watershed Modeling System (WMS) offers gis data exchange; MT3D-USGS doesn't publish it.

Watershed Modeling System (WMS) is the better fit for watershed teams modeling surface-water interactions. MT3D-USGS is the better fit for 3D multispecies transport with MODFLOW workflows.

  • Watershed Modeling System (WMS) fits best

    Watershed teams modeling surface-water interactions

  • MT3D-USGS fits best

    3D multispecies transport with MODFLOW workflows

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature Watershed Modeling System (WMS) 7.6/10 Visit ↗ MT3D-USGS 6.6/10 Visit ↗
At a glance
Editor score 7.6 6.6
Ranking #4 in Groundwater Modeling Software #8 in Groundwater Modeling Software
Best for Watershed teams modeling surface-water interactions 3D multispecies transport with MODFLOW workflows
Pricing model Free plan + paid Free
Starting price Not published Not published
Free plan ✓ ✓
Free trial — —
Deployment Desktop Self-hosted
Platforms Windows Windows, Linux
Support Phone, Email, Community, Docs Docs
Integrations 7 integrations 2 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Watershed Modeling System (WMS) 3/3 · MT3D-USGS 2/3
Transport modeling ✓ ✓
Surface-water coupling ✓ ✓
GIS data exchange ✓ (best) Not published
Specs
Flow modeling method Finite-difference Finite-difference
Model dimensions 2d 3d
Supported platforms Windows Windows, Linux
Our review
Pros
  • Delineates watersheds and sub-basins from terrain data.
  • Connects GIS workflows with hydrologic and hydraulic modeling.
  • GSSHA supports 2D groundwater–surface-water interaction and contaminant modeling.
  • Simulates 3D advection, dispersion, reactions and multispecies transport
  • Supports MODFLOW-2005 and MODFLOW-USG workflows
  • Free, open-source deployment on Windows and Linux
Cons
  • Groundwater modeling is centered on integrated GSSHA, not standalone simulation.
  • Runs on Windows as desktop software.
  • Paid editions start at $3,990 one-time.
  • Focuses on transport rather than complete groundwater-flow modeling
  • Self-hosted downloadable software requires local deployment
  • Support is provided through documentation channels
Our verdict

Watershed Modeling System (WMS) is Windows desktop software for building and analyzing watershed models. It is aimed at teams working across terrain and GIS data, watershed delineation, hydrology, hydraulics, and floodplain mapping.…

Read the review →

MT3D-USGS is a U.S. Geological Survey program for three-dimensional groundwater solute-transport simulation. It models advection, dispersion, chemical reactions and multispecies transport using a finite-difference numerical solution. The…

Read the review →
  1. Watershed Modeling System (WMS)Groundwater Modeling Software 7.6Free plan · paid from $3,990
  2. MT3D-USGSGroundwater Modeling Software 6.6Free plan

Strengths and trade-offs

  • Watershed Modeling System (WMS) — where it wins

    • Delineates watersheds and sub-basins from terrain data.
    • Connects GIS workflows with hydrologic and hydraulic modeling.
    • GSSHA supports 2D groundwater–surface-water interaction and contaminant modeling.

    Where it doesn't

    • Groundwater modeling is centered on integrated GSSHA, not standalone simulation.
    • Runs on Windows as desktop software.
    • Paid editions start at $3,990 one-time.

  • MT3D-USGS — where it wins

    • Simulates 3D advection, dispersion, reactions and multispecies transport
    • Supports MODFLOW-2005 and MODFLOW-USG workflows
    • Free, open-source deployment on Windows and Linux

    Where it doesn't

    • Focuses on transport rather than complete groundwater-flow modeling
    • Self-hosted downloadable software requires local deployment
    • Support is provided through documentation channels
  • Watershed Modeling System (WMS)7.6/10 · Free plan · paid from $3,990

    A broad watershed toolkit with groundwater interaction modeling, not a standalone groundwater simulator.

    Visit AquaveoFull verdict →
  • MT3D-USGS6.6/10 · Free plan

    A free, open-source 3D transport simulator for MODFLOW-based workflows.

    Visit MT3D-USGSFull verdict →

More comparisons

All groundwater modeling software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update