Privacy Policy
Last updated: June 18, 2026
This Privacy Policy explains how WattSimple(“WattSimple”, “we”, “us”) handles information when you use WattSimple(the “Site”). Our calculators run in your browser and we keep data collection to the minimum needed to operate and support the Site.
Information we collect
We do not require you to create an account, and we do not ask for your name, address, or payment details. We may process:
- Calculator inputs. Values you enter (e.g. vehicle, electricity rate) are processed in your browser to produce results. We do not store them on our servers.
- Usage and device data. Standard technical data such as IP address, browser type, pages viewed, and referring URL, collected automatically by analytics and advertising providers.
- Cookies and similar technologies. Used for analytics and to serve advertising (see below).
How we use information
- To operate, maintain, and improve the Site and its calculators.
- To understand traffic and which tools are useful.
- To display advertising that helps keep the Site free.
- To detect, prevent, and address abuse or technical issues.
Advertising and cookies
We use third-party advertising, including Google AdSense, to show ads on the Site. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this and other websites.
- Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to our Site and/or other sites on the internet.
- You can opt out of personalized advertising by visiting Google Ads Settings.
- You can opt out of personalized ads from other third-party vendors at aboutads.info/choices and optout.networkadvertising.org.
Analytics
We use privacy-conscious analytics to measure aggregate traffic. This data is used in aggregate and is not used to identify you personally.
Your privacy rights (US)
Depending on your state of residence (for example, California under the CCPA/CPRA), you may have the right to know what personal information is collected, to request deletion, and to opt out of the “sale” or “sharing” of personal information for targeted advertising. To exercise these rights, contact us at privacy@wattsimple.com. You may also limit ad personalization using the opt-out links above.
Data retention and security
We retain technical and analytics data only as long as needed for the purposes described here. We use reasonable safeguards to protect information, but no method of transmission or storage is completely secure.
Children's privacy
The Site is not directed to children under 13, and we do not knowingly collect personal information from them.
Changes to this policy
We may update this Privacy Policy from time to time. Material changes will be reflected by the “Last updated” date above.
Contact
Questions about this policy? Email privacy@wattsimple.com. See also our Terms of Service.