Privacy

Last updated: 15 September 2026

This site sets no cookies, has no sign-in and shows no ads. There is nothing here that identifies you.

Visitor statistics

Visits are counted with Umami Cloud, a privacy-focused analytics service that does not use cookies and does not follow you across websites. It records the page you opened, the site you came from, your browser, operating system and device type, your country, and events about how the trainer is used, such as a drill being started or finished with its score and accuracy.

Your IP address is used only to work out the country and to group requests into a visit; it is not stored. The statistics are aggregate, so nothing is tied to a person. If your browser sends a Do Not Track signal, or you use a tracker blocker, no statistics are collected at all.

Your own browser

Anything the trainer remembers for you, such as your settings or a best score, is kept in your browser's local storage on your device. It is never sent to a server, and clearing your browser data removes it.

Hosting

The site is hosted by Vercel, which keeps standard server logs, including IP addresses, to deliver the site and protect it from abuse.