Privacy policy

Draft of 29 September 2026. Not yet in force.

Who we are

AquaSWMM is a product of HydroComplete LLC, a North Carolina limited liability company. Postal address: 4 Waddell Street, Weaverville, NC 28787. Questions about this policy: support@aquaswmm.com.

What we collect, and why

• Your email address, when you start a trial, buy, sign in or contact support: to send your licence key, sign-in links, receipts, renewal notices and replies. We do not send marketing email unless you ask for it.
• Billing details, collected and held by Stripe, our payment processor: your name, billing address and payment method. We see the last four digits of a card, not the full number.
• Licence records: the licence ID, plan, seats and dates in your key, kept with your Stripe customer record.
• Support messages you send, and any licence key you include, to answer you.
• Assistant conversations: the questions you type into the AI assistant are sent to our server and to an AI model provider to produce an answer. Do not include confidential project information.
• Site analytics: for each page view, the page, the referring page, your screen size and any campaign tags in the link, plus a small number of named events (for example, that a download link was clicked or checkout was opened). We use no advertising trackers. We set no cookies. Your IP address is not stored: it is combined with your browser’s user-agent string and a secret value into a one-way hash, used only to count unique visitors. The user-agent string is stored with the page view.

The desktop app

Your models and results stay on your computer. The app checks its licence key on your computer. Near a paid key's end date, if you are online, it sends the key to our server to fetch a renewed one. No other data leaves the app. Links to the manual, pricing and support pages open in your web browser.

Who processes data for us

• Stripe (payments, billing records, invoices)
• Netlify (website hosting)
• Fly.io (our licensing and support server)
• Resend (sending email)
• An AI model provider (answering assistant questions) Anthropic (Claude)
• GitHub (hosting the download files)

We do not sell personal information.

How long we keep it

Billing and licence records are kept as long as you are a customer and afterwards as long as tax law requires. Support messages are kept for up to two years. Assistant conversations are not stored by us beyond what is needed to answer and to enforce usage limits, unless you include a conversation in a support request, in which case it is kept with that request.

Your choices

You can ask for a copy of the personal information we hold about you, ask us to correct it, or ask us to delete it (except records we must keep by law) by emailing support@aquaswmm.com.

Changes

We will post changes here and change the date at the top.