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

Head-to-head · Groundwater Modeling Software

MODFLOW 6 vs SUTRA

  • Updated Nov 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score MODFLOW 6 #1 in Groundwater Modeling Software 9.3/10 Free plan Free plan✓ 2 of 3 features Visit USGS
SUTRA #4 in Groundwater Modeling Software 8.2/10 Free plan Free plan✓ 3 of 3 features Visit USGS SUTRA

MODFLOW 6 leads on 0 checks, SUTRA on 0, and 4 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 scoreMODFLOW 6 · 9.3/10
  • Free planboth
  • Most featuresSUTRA · 3 of 3

MODFLOW 6 scores higher on our rubric for groundwater modeling software: 9.3 against 8.2 out of 10; our editors rank them #1 and #4.

On flow modeling method, SUTRA gives you Finite-element where MODFLOW 6 offers Finite-difference. On model dimensions, SUTRA gives you Both where MODFLOW 6 offers 3d.

MODFLOW 6 is the better fit for broad groundwater-flow and coupled-transport modeling. SUTRA is the better fit for finite-element, density-dependent, or thermal models.

  • MODFLOW 6 fits best

    Broad groundwater-flow and coupled-transport modeling

  • SUTRA fits best

    Finite-element, density-dependent, or thermal models

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature MODFLOW 6 9.3/10 Visit ↗ SUTRA 8.2/10 Visit ↗
At a glance
Editor score 9.3 8.2
Ranking #1 in Groundwater Modeling Software #4 in Groundwater Modeling Software
Best for Broad groundwater-flow and coupled-transport modeling Finite-element, density-dependent, or thermal models
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted Desktop
Platforms Windows, Linux, macOS Windows
Support Email Docs, Email
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features MODFLOW 6 2/3 · SUTRA 3/3
Transport modeling ✓ ✓
Surface-water coupling ✓ ✓
GIS data exchange Not checked yet ✓ (best)
Specs
Flow modeling method Finite-difference Finite-element
Model dimensions 3d Both
Supported platforms Not checked yet Windows
Our review
Pros
  • Models 3D transient groundwater flow, solute transport, and thermal transport
  • Couples multiple models, including groundwater and surface-water flow
  • Supports regular and unstructured grids on Windows, Linux, and macOS
  • Models saturated and unsaturated flow in 2D or fully 3D domains
  • Handles variable density, reactive solute, and thermal-energy transport
  • Flexible finite-element grids with lake and freeze-thaw capabilities
Cons
  • Self-hosted deployment requires users to manage their own environment
  • No AI features are included
  • Email is the listed support channel
  • Listed platform support is limited to Windows
  • Reactive solute transport covers a single species
  • Desktop deployment may not suit cloud-based team workflows
Our verdict

MODFLOW 6 is an object-oriented hydrologic simulation program developed by the U.S. Geological Survey. It is intended for groundwater modelers, including academics, consultants, and government scientists, who need to represent…

Read the review →

SUTRA is a USGS groundwater simulator for saturated and unsaturated flow with constant or variable density. It supports single-species reactive solute transport and thermal-energy transport in two-dimensional and fully three-dimensional…

Read the review →
  1. MODFLOW 6Groundwater Modeling Software 9.3Free plan
  2. SUTRAGroundwater Modeling Software 8.2Free plan

Strengths and trade-offs

  • MODFLOW 6 — where it wins

    • Models 3D transient groundwater flow, solute transport, and thermal transport
    • Couples multiple models, including groundwater and surface-water flow
    • Supports regular and unstructured grids on Windows, Linux, and macOS

    Where it doesn't

    • Self-hosted deployment requires users to manage their own environment
    • No AI features are included
    • Email is the listed support channel

  • SUTRA — where it wins

    • Models saturated and unsaturated flow in 2D or fully 3D domains
    • Handles variable density, reactive solute, and thermal-energy transport
    • Flexible finite-element grids with lake and freeze-thaw capabilities

    Where it doesn't

    • Listed platform support is limited to Windows
    • Reactive solute transport covers a single species
    • Desktop deployment may not suit cloud-based team workflows

MODFLOW 6 vs SUTRA: questions

Which is better for groundwater modeling software, MODFLOW 6 or SUTRA?

MODFLOW 6 scores higher on our rubric for groundwater modeling software: 9.3 against 8.2 out of 10; our editors rank them #1 and #4.

How do MODFLOW 6 and SUTRA compare?

All 4 checks we put side by side come out level: neither leads on any.

Do MODFLOW 6 and SUTRA have a free plan?

MODFLOW 6: Yes. SUTRA: Yes.

More comparisons

All groundwater modeling software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

Last updated · How we research and update