Start with seven days free. Add a payment method securely at checkout; the selected monthly plan begins automatically after the trial unless you cancel first. Prices exclude applicable VAT.
Monthly billingChange or cancel from the billing portal.Credit or debit cardSecurely processed through Stripe Checkout.InvoiceAvailable for Team, Site, and private contracts.
Academic
Research
For an individual researcher building source-backed process studies.
€149 / month
7 days free · then 1 named seat billed monthly
Flowsheet, simulation and equations
Private research projects
Academic engineering exports
Scientific source library
Recommended
Professional
For a process engineer comparing complete design and scale-up decisions.
€590 / month
7 days free · then 1 named seat billed monthly
Full equipment and process library
Balances, ODE/PDE, CFD and scheduling
TEA, LCA and sensitivity analysis
Decision package with evidence gaps
Excel, SVG, CSV and complete ZIP exports
Team
Engineering Team
For multidisciplinary teams reviewing, branching, and approving shared models.
€2,490 / month
7 days free · then 5 named seats billed monthly
Everything in Professional
Collaboration, invites and comments
Branches, versions and audit trail
Shared model libraries and reports
Site
Enterprise Site
For governed site-wide modelling, company data integration, and deployment.
€6,900 / month
7 days free · then 20 named seats billed monthly
Everything in Engineering Team
Company data and API connectors
Enterprise identity and governance
Priority onboarding and support
Private deployment
Validated models, dedicated infrastructure, and implementation.
For organizations that need private-cloud or on-premise deployment, customer-specific model calibration, validation protocols, enterprise integration, and engineering support.
From €12,500 / month
Scope, infrastructure, validation, and support agreed for the deployment.
Discuss a private deployment
Prices exclude applicable VAT. Compute-heavy validated CFD and private deployment infrastructure may be scoped separately.
Payment FAQ
Seven days free, then monthly.
How does the free trial work?
Stripe securely collects a payment method at checkout, but no subscription fee is charged for the first seven days. Acatian opens the workspace immediately. On day eight, the selected monthly plan begins automatically unless you cancel beforehand in the billing portal.
How does payment work after the trial?
Research and Professional subscriptions use secure Stripe Checkout. Credit and debit cards are processed by Stripe. Team, Site, and private contracts can also be billed by invoice.
Which payment methods are available?
Self-service subscriptions accept eligible credit and debit cards through Stripe Checkout. Invoice billing is available for Team, Site, and private contracts after the billing contact and company details have been confirmed. Stripe is the payment processor, not a separate customer payment method.
Can I cancel or update the payment method?
Yes. Active customers can open the Stripe customer portal from their profile to manage payment methods, invoices, and cancellation.
Is VAT included?
No. Displayed prices exclude applicable VAT. Stripe collects billing address and tax ID details so the configured tax treatment can be applied.
When does access start?
Immediately after the trial checkout is completed. The first subscription charge is due after seven days unless the subscription is cancelled before then.
Do validated CFD or private deployments cost extra?
They can. Dedicated infrastructure, customer-specific calibration, validation work, and external CFD compute are scoped separately because the required effort and compute vary by project.