Last updated: October 23, 2026. This policy explains what information TrowelMath (trowelmath.pages.dev) handles, why, and your choices.
Information you enter
Calculators run entirely in your web browser. The numbers, dates and text you type are processed on your device and are not sent to our servers. If you use the share link button, your inputs are placed in the link itself; anyone you share the link with can see them.
Information stored on your device
We store one setting in your browser's local storage: your light or dark theme preference (key t). You can clear it at any time in your browser settings.
Hosting and server logs
The site is hosted on Cloudflare Pages. Cloudflare processes technical data such as IP address, browser type and requested pages to deliver the site and protect it from abuse, under the Cloudflare privacy policy. We do not use this data to identify visitors.
Advertising and cookies
We may show ads served by Google AdSense. Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites. Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the Internet.
- You may opt out of personalised advertising by visiting Google Ads Settings, or opt out of some third-party vendors' use of cookies at aboutads.info.
- Learn how Google uses information from sites that use its services.
- Visitors in the European Economic Area, the UK and Switzerland will be asked for consent through a Google-certified consent management platform before personalised ads or advertising cookies are used.
Until ads are enabled, the site sets no advertising cookies.
Affiliate links
Amazon links include our Associates tag. When you click one, Amazon may set cookies under its own privacy notice to attribute a purchase. We receive no personal information about you from Amazon.
If you email us, we use your address and message only to reply, and we delete correspondence we no longer need.
Your rights
Depending on where you live (for example under the GDPR or the California Consumer Privacy Act), you may have rights to access, correct or delete personal data and to opt out of the sale or sharing of personal information. We do not sell personal information. To make a request, email syedzafarbuying@gmail.com.
Children
The site is not directed at children under 13 and we do not knowingly collect their information.
Changes
We will post any change to this policy on this page with a new "last updated" date.