Short, because there is little to say.
This website
These pages use Google Analytics so we can see which pages people find useful and where visitors come from. Nothing else is loaded from other companies: no advertising pixels, no embedded players.
If you are in the European Union, the United Kingdom, Iceland, Liechtenstein, Norway or Switzerland, we ask before Google Analytics may set a cookie. If you decline, it still counts the visit, but without a cookie and without anything that identifies your browser. Your choice is kept in your own browser so we do not ask again. Everywhere else, Google Analytics sets its usual cookies, which hold a random identifier and last up to two years. We send IP addresses with the last part removed and we never send names, email addresses or anything you type into a form.
Google's own description of what it collects is at policies.google.com/technologies/partner-sites. To opt out everywhere, use Google's browser add-on or decline in the bar on this site.
The app
The app itself has no analytics and loads nothing from Google or anyone else. After you sign in, the app sets one cookie that keeps you signed in. It is marked HttpOnly and Secure, which means the page cannot read it and it travels only over encrypted connections. It is cleared when you sign out. The app also keeps a few conveniences in your browser's own storage, such as which tab you had open. None of this is used to track you across other sites.
Changes
If we ever add anything that needs your consent, this page will say so first and the app will ask.