Plans

The science is free. The service is optional.

Download Tractrix through your email-verified account for use on your own machine. Paid plans cover Tractrix Cloud: hosting, team workspaces, higher limits and support. Prices will be published when Cloud leaves preview.

For everyone

Community

Free

Open source, GPL-2.0-or-later. A verified account is required to download.

Tractrix for QGIS: all ten tools
OpenAirside engine and tractrix-engine CLI
AutoCAD and Revit add-ins with the local engine
388 aircraft and 14 ground vehicles
Cloud workspace in preview: 50 runs a month, 3 projects, 3 seats
Help centre support

Download

For project teams

Professional

Contact sales

Team plans are agreed individually.

Everything in Community
Tractrix Cloud for your organisation
2,000 runs a month, unlimited projects
Up to 25 seats and 50 API tokens
Drawings up to 20 MB (GeoJSON, DXF)
Cloud engine for the AutoCAD and Revit add-ins
E-mail support

Join the preview

For airports and large practices

Enterprise

Invoiced. Terms agreed with your organisation.

Everything in Professional
No limits on runs, projects, seats or API tokens
Invoiced billing
Onboarding and validation support for your fleet mix
Deployment options discussed on request

Contact Tractrix

Cloud limits are those configured for the preview and may change before general availability. Nothing is deleted or blocked retroactively when a limit is reached: the service explains which limit applies.

Compare

What changes between plans.

The engine, the algorithms and the results are identical in every plan. Plans differ only in hosting, collaboration and limits.

**Table 1** Plan comparison. Cloud values are preview limits.
Feature	Community	Professional	Enterprise
Simulation engine and algorithms	Same	Same	Same
QGIS plugin, CLI, CAD add-ins (local engine)	●	●	●
Cloud runs per month	50	2,000	Unlimited
Cloud projects	3	Unlimited	Unlimited
Seats	3	25	Unlimited
API tokens	2	50	Unlimited
Maximum drawing size	5 MB	20 MB	20 MB
Support	Help centre	E-mail	Agreed with you

Questions about billing? See the billing FAQ.