No surprises. No annual lock-in.

Plans built to grow with you

Start free with the QUAL2K engine and our footprint calculators. Upgrade to Pro when you need unlimited simulations and branded PDF reports.

Free

$0 / month

For students, explorers, and small projects.

  • 1 trial simulation no signup
  • 3 simulations / month with account
  • Footprint calculators (no save)
  • Full documentation
  • Community support
Start free
Most popular

Pro

$19 / month

For consultants and environmental professionals.

  • Unlimited simulations
  • Saveable water and carbon footprints
  • Branded PDF reports
  • Excel + JSON export
  • Priority AI assistant
  • Email support
Try Pro

University Premium

Free for students & faculty

Registered universities receive full Pro access.

  • All Pro features
  • Email-domain verification
  • No simulation limit
  • Academic use cases
  • Course materials
Register university

Frequently asked questions

Can I cancel anytime?

Yes. Pro is month-to-month, no annual contract. Cancel from your dashboard whenever.

What happens to my data if I cancel?

Your projects and simulations remain read-only. You can export everything as JSON or Excel.

Are the footprint calculators audited?

They are screening-grade estimators. A formal ISO 14046 or ISO 14064-1 study needs review by a certified verifier.

Do you support company invoicing?

Yes. Stripe handles VAT-compliant invoices. For custom invoicing or bank transfers, contact us.