Information We Collect

Shelf Math does not collect personal information. The price comparison calculator saves your input values in your browser's local storage so your numbers are still there if you refresh the page. This data stays on your device and is never transmitted to any server.

Analytics

This site uses Google Analytics to understand how visitors use the site (which pages are visited, how long people stay, general geographic location). This data is anonymous and aggregated. Google Analytics uses cookies. You can opt out using Google's opt-out browser add-on.

Advertising

This site may display advertisements served by Google AdSense. Google uses cookies to serve ads based on your prior visits to this and other websites. You can opt out of personalized advertising by visiting Google Ad Settings.

Cookies

Cookies may be used by Google Analytics and Google AdSense as described above. The calculator uses browser local storage (not cookies) to save your inputs.

Contact

Questions about this policy? Use the contact page.