Start free with the prediction engine and the calculators. Move to Pro when you need unlimited use.
For students, explorers and small projects. No card needed.
or USD 149 / year, billed once a year (save 34% vs paying monthly)
For consultants and environmental professionals.
Renews automatically every month (USD 19) or every year (USD 149) until you cancel. Cancel anytime from your account and keep Pro until the end of the paid period. Purchases are final and non-refundable. Refund policy · Terms
Students and staff of universities we register get an extended monthly quota and watermark-free reports with their verified institutional email.
US dollars (USD): USD 19 per month or USD 149 per year. Your bank may add currency conversion fees. Taxes, if any, are shown at checkout.
Yes. The plan renews automatically every month or every year until you cancel.
Anytime: sign in, open the account menu (top right) and choose Manage subscription. You keep Pro until the end of the paid period and are not charged again. You can also ask us at info@hydrolitica.com.
No. Because access is immediate, payments are final and non-refundable, except where the mandatory consumer law of your country says otherwise. We fix any billing error: write to info@hydrolitica.com. Use the free plan to try Hydrolitica before you pay.
Your saved projects and results stay in your account; after the paid period ends, the free plan limits apply again.
No. They are screening-grade estimators. A formal ISO 14046 or ISO 14064-1 study needs review by a certified verifier.