Privacy Policy

Last updated: March 2026

What data we collect

None. BillFast processes everything entirely in your browser. No personal data, invoice details, or files are sent to or stored on our servers.

Local storage

BillFast uses your browser's localStorage to save your theme preference and invoice form data between sessions. This data never leaves your device and can be cleared at any time through your browser settings or the "Clear Form" option in the app.

Cookies

BillFast does not use cookies.

Third-party services

BillFast uses the following third-party services:

• Google Analytics (GA4) — We use Google Analytics to understand how visitors use the site (page views, feature usage). This may collect your IP address and browser information. You can opt out via Google's opt-out tool.
• Google Fonts — Fonts are loaded from Google's servers, which may log standard request data.
• html2pdf.js (CDN) — Used to generate PDF files in your browser.
• LemonSqueezy — If you purchase a paid plan, your payment is processed by LemonSqueezy. We do not store your payment details.
• Buttondown — If you subscribe to our newsletter, your email address is stored by Buttondown. See their privacy policy.

Changes to this policy

We may update this policy from time to time. Changes will be reflected on this page with an updated date.

Contact

If you have questions about this policy, reach out at hello@billfast.co.