Functional-Structural Plant Modelling
and Simulation

Build, simulate, calibrate and analyse functional-structural plant models — all in one desktop application. From first equation to validated predictions.

All the modelling tools you need

Six integrated modules, one application.
AI agent friendly command line mode.

Data I/O

Import measurement data from CSV or text files with flexible format configuration, and 3D objects from OBJ files. Export results for further analysis.

Model Editor

Write plant models in familiar mathematical notation with a smart equation editor, and build their 3D plant structure in an interactive editor.

Simulation

Simulate dynamic models using a range of numerical solvers, including calculations of light interception by 3D plant structures. Visualise simulation results through interactive dashboard charts and 3D views.

Calibration

Automatically fit your model parameters to experimental data and calculate confidence information. Supports both static calibration and moving-window calibration.

Sensitivity and Identifiability Analysis

Identify which model parameters have the greatest influence on your model variables and use this for model understanding, to guide model simplification, and for experimental design.

Uncertainty Analysis

Propagate parameter uncertainty through your model using Latin Hypercube sampling. Understand the range of plausible model outputs given the variability in your model parameters.

A picture is worth a thousand words

PlantSim v2.3.0 running on macOS.

Plant AnalytiX logo as an FSPM
Data I/O — import measurement datasets and inspect mapped variables
Data I/O
3D Model Editor — 3D structure editor with move/rotate/scale tools and visibility controls
3D Model Editor
Model Editor — syntax-highlighted model code with real-time validation
Model Equation Editor
Simulation (functional-structural) — Functional-Structural Plant Modelling simulation
Simulation (functional-structural)
Simulation (functional only) — interactive results dashboard with zoomable charts
Simulation (functional only)
Calibration — parameter optimisation against measured data
Calibration
Sensitivity Analysis — local sensitivity ranking and identifiability
Sensitivity Analysis
Uncertainty Analysis — sampled parameter scenarios and prediction spread
Uncertainty Analysis
Built-in Examples — catalogue of built-in example workspaces
Built-in Examples

Pricing & Licensing

Simple, transparent licensing — one application, two tiers.

Personal & Academic
Free
No strings attached

  • For individual researchers, students, and academic institutions
  • Select 'Free for personal or academic use' during registration
  • All six modules (Data I/O, Modelling, Simulation, Calibration, Sensitivity analysis, Uncertainty analysis)
Commercial
€499
per user / per year with 30-day trial

  • Licence for use within a commercial organisation
  • Select 'Commercial' during registration
  • 30-day trial period
  • Priority support
  • Eligible for volume and multi-user discounts

Not sure which licence applies? Get in touch — we're happy to help.

Download PlantSim

Available for macOS and Windows.

v2.3.0  ·  October 2026

Documentation

Everything you need to get started and go further.

Documentation is also available in-app via the Help menu or the Documentation sidebar item.