Privacy Policy

Effective November 15, 2026

What we collect

When you create an account, Percyst processes your name, email address, and a securely hashed password. We record your email-verification status and subscription details required to manage your account. When you contact us, we receive the information you submit, including your name, email address, topic, and message.

Your local project evidence

The Percyst Windows application stores imported conversation archives, project sources, evidence records, and handoffs on your computer. Creating a website account does not upload those archives. Browser companion captures are explicit actions you choose.

Payments and service providers

Stripe handles subscription payment checkout and billing. Percyst receives customer and subscription identifiers, plan status, and webhook events used to maintain your account; we do not store card numbers. Transaction and billing data are also handled under Stripe's privacy practices. Transactional account messages and contact email are delivered using an email provider.

Cookies and security

A necessary, secure, HttpOnly session cookie keeps you signed in. We use a session-bound security token for state-changing requests and apply request rate limits. We do not require advertising cookies to use the website.

Retention and choices

Account and subscription records are retained while your account is in use and as needed for billing, security, legal, and operational obligations. Contact messages are retained in our email service until removed under our operational retention procedures. You may request access, correction, or deletion of website account information using the contact form. Deletion may be limited where records must be retained by law. Your locally stored conversation archive is managed separately on your device.

Contact

For privacy requests, use the Percyst contact form and select a relevant topic.