# Privacy policy

- No accounts. Cloudflare Web Analytics, cookie-free.
- Invoice generator data and theme choice are stored only in the visitor's own browser (localStorage).
- Google AdSense may be shown; it uses cookies. Opt out at https://www.google.com/settings/ads

Source page: https://cartonmath.com/privacy/
Updated: 2026-10-06
Publisher: CartonMath (https://cartonmath.com)