Privacy policy

Last updated: 27 July 2026

WattPayback calculators run entirely in your browser. Inputs you type into tools are not sent to a WattPayback server for calculation (there is no calculation API).

Region preferences may be stored in your browser's localStorage so defaults persist between visits.

Advertising

WattPayback shows advertisement slots on some pages (home, calculators, and articles). Until Google AdSense (or another network) is connected, those slots may link to partner / sponsor destinations. When AdSense is enabled, Google and its partners may use cookies or similar technologies to serve ads subject to Google's policies and your choices.

Google AdSense publisher ID: ca-pub-4517726775065181.

Hosting and logs

The site is hosted on Vercel. Hosting providers may process standard server logs (IP address, user agent, pages requested).

Contact

Privacy requests: fujira.studios@gmail.com