Vulcan has two self-serve plans: a free plan and Vulcan Pro. Enterprise options are available for teams and integrators. Current prices are shown on the join page.
What each plan includes
The free plan includes:
- Geometry: draw or import dwellings, edit elements, and validate inputs
- Local simulations: one scenario per configuration, with one base model, an FHS wrapper, and the default weather
- Results: metrics, graphs, and CSV exports
- SAP PDF and XML import and comparison
- Support chat for reporting issues
Vulcan Pro adds:
- Calculate: prepare and submit ECaaS compliance submissions
- Full scenario modelling across weather, fabric, and systems
- Projects and developments, including bulk actions
- Sharing models with colleagues and editing them together. Anyone can view a model shared with them. See the Shared Models Guide.
- Customise: theme and element naming settings
- Changing the HEM model version, and choosing the weather in Quick sim
- The thermal bridge junction calculator (Calculate Value), and recognised and manufacturer detail packs
- Vulcan Analyst and the MCP helper
- Project support in the support chat
You can buy several Pro seats for a team on the join page. For embedding or API integration, use the Enterprise enquiry on the same page.
Creating an account
You can start free with just your email address:
- Enter your email on usevulcan.app and select Start free.
- Open the sign-in link that Vulcan emails you.
- Complete the account setup form: name, company, job title, expected usage, and the software terms.
No payment card is needed for the free plan. The setup form must be completed before the app opens. Free accounts sign in with an emailed link and have no password; to set one, enter your email on the sign-in screen, then choose Forgot password?.
Upgrading to Vulcan Pro
Upgrade from the join page while signed in. The upgrade applies to your existing account and organisation, so you keep your models, workspace, and login. You will not receive a new password email.
After payment, the confirmation page shows your plan, organisation, and seats. From there you can launch Vulcan or open billing.
Seats
Vulcan Pro is priced per user. Your seats are listed in Profile > Billing, each marked as paid or complimentary. To change who holds a seat, click Speak to Vulcan at the bottom right of the website.
Payment issues
If a subscription payment fails:
- Pro access continues for up to 30 days from the date payment was due, but not beyond a scheduled end of Pro access.
- The app shows a Payment issue banner with the date Pro access ends. Your billing email receives a link to update your card, and organisation admins can also use Profile > Billing > Manage Payment Method.
- If payment is not resolved, the account returns to the free plan. Your account, organisation, and data are kept.
Vulcan Analyst and the MCP helper use a locally verified config file that stays valid for up to seven days, so they can keep working for up to seven days after a plan change.
For the full terms, see the Software Terms of Use.