Last updated: February 2026
None. BillFast processes everything entirely in your browser. No personal data, invoice details, or files are sent to or stored on our servers.
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.
BillFast does not use cookies.
BillFast loads fonts from Google Fonts and the html2pdf.js library from a CDN to generate PDFs. These services may collect standard web request data (IP address, user agent) as described in their respective privacy policies.
We may update this policy from time to time. Changes will be reflected on this page with an updated date.
If you have questions about this policy, reach out at hello@billfast.co.