Privacy policy
Last updated 6 October 2026.
What we collect
There are no accounts. We use Cloudflare Web Analytics, which counts page views without cookies and without tracking you across sites.
What stays on your device
The invoice and packing list generator saves what you type in your own browser's local storage so it is there next time. It is never sent to us. The Clear button deletes it, as does clearing your browser's site data. The theme choice (light or dark) is stored the same way. Calculators run entirely in your browser.
Advertising
We may show ads from Google AdSense. Google and its partners use cookies to serve ads based on your visits to this and other websites. You can opt out of personalised advertising at Google Ads Settings or aboutads.info.
Contact
Questions about this policy: contact@cartonmath.com.