| Feature / Option | FREE | PREMIUM |
| Realtime Steady and Unsteady Flow Simulation & Visualization | ✔ | ✔ |
| Vertical Layers, NZ (total conceptual layers, computational layers, or a combination) | 1 | Unlimited* |
| N (NX*NY*NZ) | 875 | 702000 |
| Num. Time Steps | 10 | -- |
| Georeferenced, Map-based Model Mode | ✔ | ✔ |
| Synthetic Model Mode | ✔ | ✔ |
| Interactive Groundwater (IGW) Flow Packages/Solvers | ✔ | ✔ |
| MODFLOW 6 (Core) Flow Packages/Solvers | ✔ | ✔ |
| MODFLOW-USG (UnStructured Grid) | ✔ | ✔ |
| MODFLOW-NWT (NeWton Formulation) | ✔ | ✔ |
| MODFLOW-2005 Flow Packages/Solvers | ✔ | ✔ |
| MODFLOW-2000 Flow Packages/Solvers | ✔ | ✔ |
| Vertical Profile Modeling | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Model vs. Obs. XY chart (Steady or Unsteady) | ✔ | ✔ |
| Max. Total Npts | 500 | -- |
| Auto-calculation of key statistical indicators | ✔ | ✔ |
| Hydrograph (Time-series) model-data comparisons | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Histogram, PDF, CDF, Spatial Trend and Temporal Trend Plots | ✔ | ✔ |
| Density Distribution 3D Plot | ✔ | ✔ |
| Multi-parameter Linear Regression Analysis | ✔ | ✔ |
| Outlier Analysis / Removal | ✔ | ✔ |
| 2D or 3D interpolation of scattered data (IDW, Kriging) | ✔ | ✔ |
| Max. Npts | 100 | Unlimited* |
| Interpolation N (NX*NY*NZ) | 875 | 702000 |
| Max. Numb. Of Nearest Points (for interpolation) | 30 | -- |
| Feature / Option | FREE | PREMIUM |
| Model Random Sampling Tool | ✔ | ✔ |
| UCODE based Parameter Estimation (Optimization) | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Submodel (Model within a Model) with Boundary Conditions from Parent Model | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Feature (zone, line, well) based Unstructured Grid Generator | -- | ✔ |
| MODFLOW 6-based Unstructured Grid Modeling and Visualization | -- | ✔ |
| Number of refinement features (box, line, well) | -- | Unlimited |
| Feature / Option | FREE | PREMIUM |
| Realtime particle tracking simulation | ✔ | ✔ |
| N (total Num. particles) | N=100 | unlimited N |
| Particle Post Analysis Tool | -- | ✔ |
| 3DVTK Particle Visualization | -- | ✔ |
| Feature / Option | FREE | PREMIUM |
| Realtime single species fate & transport simulation | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Multiple species fate & transport simulation | -- | ✔ |
| Feature / Option | FREE | PREMIUM |
| Stochastic Paramterization of Aquifer Properties, at one or more scales | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Realtime Monte Carlo Simulation | -- | ✔ |
| Number of Realizations | -- | Unlimited |
| Feature / Option | FREE | PREMIUM |
| TP Data extraction and 3D Simulation | ✔ | ✔ |
| Num. Material Intervals | 100 | Unlimited |
| TP N (NX*NY*NZ) | 4375 | 702000 |
| Feature / Option | FREE | PREMIUM |
| Realtime, INFIL-based Land Surface (Recharge) Simulation | -- | ✔ |
| Recharge from SwaNET Watershed Simulation | -- | ✔ |
| Feature / Option | FREE | PREMIUM |
| Realtime coupled lake-aquifer simulation | -- | ✔ |
| Feature / Option | FREE | PREMIUM |
| MF Model Analysis Tool | ✔ | ✔ |
| Total Number of cells | 100000 | unlimited N |
| Timesteps | 300 | unlimited N |
| Feature / Option | FREE | PREMIUM |
| Theis Solution Plotting Tool | ✔ | ✔ |
| Specific Capacity Tool | ✔ | ✔ |
| Jacob-Cooper Regression Estimation Tool | ✔ | ✔ |
| RMS Analysis Tool | ✔ | ✔ |
| Optimization Tool | ✔ | ✔ |
| Curve Matching Tool | ✔ | ✔ |
| Slug Test Analysis Tool | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Baseflow Separation Tool, including live-link to extracted USGS stream flow data (see below) | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Save model file to local computer | ✔ | ✔ |
| Saved models on server | 1 (last model) | 1 (last model) |
| Max. User Folder Size Limit | 100 MB | Unlimited |
| Feature / Option | FREE | PREMIUM |
| Google Maps Road, Terrain, Satelitte, Hybrid Layers; Bing Maps | ✔ | ✔ |
| Image Overlay Tool | ✔ | ✔ |
| Image Georeference Tool | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Interactive Mapping of Web Mapping Services (WMS) or Web Map Tile Service (WMTS) | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Map-based Model Visualization (inputs and outputs) | ✔ | ✔ |
| High Resolution Display | -- | ✔ |
| Export to Google Earth KMZ/KML | -- | ✔ |
| Feature / Option | FREE | PREMIUM |
| Realtime Aquifer, zone, and cell-based water balance | ✔ | ✔ |
| Realtime Monitoring Well Time-series Chart | ✔ | ✔ |
| Interactive Cross-section Diagrams & Plots | ✔ | ✔ |
| Realtime Nodal Value analysis | ✔ | ✔ |
| Interactive 3D Surface Chart | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Analysis and Visualization of Unsteady or Steady MAGNET Model Simulation (map-based results, nodal values, water balance, cross-sections, surface charts, model-data comparison) | ✔ | ✔ |
| Number of Monitoring Wells | 1 | Unlimited |
| Feature / Option | FREE | PREMIUM |
| 3D Head and 3D Velocity Vectors | -- | ✔ |
| 3D Wells and 3D Point Data (e.g., water quality sample) | -- | ✔ |
| 3D layers/geologic surfaces | -- | ✔ |
| 3D particle path-lines | -- | ✔ |
| 3D plumes or concentration iso-surface | -- | ✔ |
| 3D borehole lithologies | -- | ✔ |
| 3D Aquifer Material Model | -- | ✔ |
| Feature / Option | FREE | PREMIUM |
| Big Data published as Web Data Services Web-based data/map visualization and model building (WMS - background maps; WFS - vectors; WCS - rasters) | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Auto-extraction of spatial framework raster data (e.g., DEM, recharge, aquifer thickness, hydraulic conductivity) | ✔ | ✔ |
| Auto-extraction of spatial framework line & polygon data (e.g., streams and rivers, lakes, wetlands, watersheds, geologic land forms, etc.) | ✔ | ✔ |
| Auto-extraction of point data (e.g., Static Water Levels, borehole lithologies, water quality) | ✔ | ✔ |
| Watershed boundary from TauDEM | ✔ | ✔ |
| River network delineation from TauDEM | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Historical and realtime/current groundwater levels from monitoring wells (USGS National Monitoring Well Network for USA) | ✔ | ✔ |
| Historical and realtime/current water levels (stages) and/or flow rate (USGS Monitoring stream gaging stations for USA, Environment Canada National Hydrometric Data) | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Upload shapefiles as lines, points, zones, or model domain | ✔ | ✔ |
| Upload rasters as model elevation surface (e.g., DEM, bedrock topography) or parameter input (e.g., recharge, conductivity) | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Transfter WFS layers as lines, points, or zones from DataNET to AquaNET | ✔ | ✔ |
| Transfter WCS layers as rasters from DataNET to AquaNET | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| AI-generated Reports and Presentation Model Summaries, Detailed Descriptions, Captioned figures | ✔ | ✔ |
| Automated Model Parameter Table Generation | ✔ | ✔ |
| Embedded Video Maker Tool for auto-capturing dynamic model results (unsteady flow, particle tracking, plume transport, etc.) | ✔ | ✔ |
| On-demand Model Run-time Log Files and Convergence History | ✔ | ✔ |
| Instantly Publish models, reports, and/or data, etc to Global Model Network (see below) | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Groundwater Science AI-Assistant (AI Chat) Trained to groundwater theory, case studies, open-source textbooks, etc. | ✔ | ✔ |
| Case Study Gallery Real-world Implementations & Applications of AquaNET | ✔ | ✔ |
| Groundwater Digital Library Visualizations relevant to Research and Education | ✔ | ✔ |
| Short lessons and reading materials | ✔ | ✔ |
| IGW-NET Modeling problems and exercises | ✔ | ✔ |
| IGW-NET Capstone Projects | ✔ | ✔ |
| Instructor curriculum tools and resource sharing | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| Map Interface of Published Cyber-enabled Observatories (CEOs) of IGW-NET models, input/output data, reports, graphics, videos, discussion, etc. | ✔ | ✔ |
| AI-powered search / query/ filter tools Find models, data, reports, people, … | ✔ | ✔ |
| View CEO details Access reports, model descriptions, parameter tables, graphics, videos | ✔ | ✔ |
| Load published modeling directly into IGW-NET | ✔ | ✔ |
| Guest Accounts with Simultaneous Simulation Same model/results at different locations, in realtime | ✔ | ✔ |
| Feature / Option | FREE | PREMIUM |
| IGW-NET Software and Modeling AI-Assistant (AI Chat) | ✔ | ✔ |
| Realtime, Situational Help Pages | ✔ | ✔ |
| Quick Tutorials and Extended Tutorials (text and videos) | ✔ | ✔ |
| Technical Reference Docs | ✔ | ✔ |