Head-to-head · Groundwater Modeling Software
MODFLOW-USG vs MT3D-USGS
MODFLOW-USG leads on 0 checks, MT3D-USGS on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreMODFLOW-USG · 7.8/10
- Free planboth
- Most featuresMT3D-USGS · 2 of 3
MODFLOW-USG scores higher on our rubric for groundwater modeling software: 7.8 against 7.5 out of 10; our editors rank them #6 and #8.
MODFLOW-USG is the better fit for unstructured grids and complex well or conduit systems. MT3D-USGS is the better fit for 3D multispecies transport with MODFLOW workflows.
- MODFLOW-USG fits best
Unstructured grids and complex well or conduit systems
- MT3D-USGS fits best
3D multispecies transport with MODFLOW workflows
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Side by side
| Feature | MODFLOW-USG 7.8/10 Visit ↗ | MT3D-USGS 7.5/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 7.8 | 7.5 |
| Ranking | #6 in Groundwater Modeling Software | #8 in Groundwater Modeling Software |
| Best for | Unstructured grids and complex well or conduit systems | 3D multispecies transport with MODFLOW workflows |
| Pricing model | Free | Free |
| Starting price | Free plan | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Self-hosted | Self-hosted |
| Support | Docs | |
| Built for | Mid-market, Enterprise | Small business, Mid-market, Enterprise |
| Features MODFLOW-USG 0/3 · MT3D-USGS 2/3 | ||
| Transport modeling | Not checked yet | ✓ (best) |
| Surface-water coupling | Not checked yet | ✓ (best) |
| GIS data exchange | Not checked yet | Not checked yet |
| Specs | ||
| Flow modeling method | Finite-difference | Finite-difference |
| Model dimensions | Not checked yet | 3d |
| Supported platforms | Not checked yet | Windows, Linux |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | MODFLOW-USG is a USGS groundwater-flow model for teams working with structured or unstructured grids, nested layouts, multiple cell shapes, and complex subsurface connections. Its control-volume finite-difference formulation allows each… 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 → |
Strengths and trade-offs
MODFLOW-USG — where it wins
- Handles structured, unstructured, nested, and multi-shape grids
- Models arbitrary cell connectivity with Ghost Node Correction
- Represents multi-node wells, karst conduits, tile drains, and networks
Where it doesn't
- Self-hosted deployment requires local installation and management
- Support is provided through email rather than broader channels
- Flow-focused scope suits fewer transport and surface-water workflows
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
- MODFLOW-USG7.8/10 · Free plan
A free, self-hosted MODFLOW variant for irregular grids and specialized groundwater systems.
Visit USGSFull verdict → - MT3D-USGS7.5/10 · Free plan
A free, open-source 3D transport simulator for MODFLOW-based workflows.
Visit MT3D-USGSFull verdict →
MODFLOW-USG vs MT3D-USGS: questions
Which is better for groundwater modeling software, MODFLOW-USG or MT3D-USGS?
MODFLOW-USG scores higher on our rubric for groundwater modeling software: 7.8 against 7.5 out of 10; our editors rank them #6 and #8.
How do MODFLOW-USG and MT3D-USGS compare?
All 3 checks we put side by side come out level: neither leads on any.
Do MODFLOW-USG and MT3D-USGS have a free plan?
MODFLOW-USG: Yes. MT3D-USGS: Yes.
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All groundwater modeling software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
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