Privacy policy

What we collect

• Your email address and name (from Google or the email you type in), to create and secure your account.
• Purchase records from Stripe: amount, date, and Stripe identifiers. We never see your card number.
• A referral cookie (cgsp_ref) for 90 days if you arrive through a referral link, so the referrer can be credited.
• Aggregate, cookieless page analytics from Vercel Analytics.
• Messages you send through the contact form.

What we don't collect

• Audio. The Service never uses your microphone.
• Practice history. Settings like tempo and the last scale you chose are stored only in your browser.

How we use it

To sign you in, to unlock what you paid for, to pay referrers, to answer your messages, and to understand which pages are read. We do not sell personal data and do not send marketing email.

Who else sees it

Service providers that run the site: Vercel (hosting and analytics), Neon (database), Stripe (payments), Resend (email), and Google (if you sign in with Google). Each processes data under its own terms.

Cookies

A session cookie keeps you signed in for up to 30 days. The referral cookie is described above. There are no advertising cookies.

Your rights

You can ask us to export or delete your account data at any time via the contact page. Deleting your account removes your access to purchased scales.