Privacy Policy

What We Collect

Nothing that identifies you. There are no accounts, no sign-up forms, and no mailing list. We don't collect, buy, or sell personal information. Plans you build in our tools are computed in your browser and never sent to us.

Two things do run on these pages, and they are described below rather than left for you to find.

Analytics

We use Vercel Web Analytics to count page views and see which pages get read. It sets no cookies and does not follow you to other sites. What comes back to us is counts, not people.

Advertising

These pages carry Google AdSense. Google and its partners may use cookies to serve and measure ads, and in some cases to personalize them based on your earlier visits to this and other sites. You can switch personalized advertising off at any time in Google's own Ads Settings, and you can opt out of participating third party vendors at aboutads.info.

If you are in the European Economic Area, the United Kingdom or Switzerland, you are asked whether you consent before any of that runs, and you can say no. Saying no changes nothing about the site. Every page works the same and no research is held back.

What Stays in Your Browser

Your light-or-dark theme choice is saved in your browser's storage so the site remembers it next visit. It never leaves your device. Google's advertising and consent cookies sit in your browser too, and clearing your browser data removes all of it.

Service Providers

Vercel hosts the site and, like any host, processes standard technical logs such as IP addresses to serve pages and prevent abuse. Our pages load two typefaces from Google Fonts, so your browser requests those files from Google when a page loads. Google AdSense serves the advertising described above.

If You Email Us

We use your address to reply, and for nothing else. No lists, no sharing.

Changes

If our practices change, this page changes first, with a new effective date.