Run10K is being built; this policy covers everything the site does today and will grow before any new data collection ships.
Anonymous, aggregate usage statistics via Plausible Analytics — a cookieless service that stores no personal data and no cross-site identifiers. We see counts (visits, stage passes), never people.
Your theme preference and, once training features ship, your training progress — kept in your browser's local storage, on your device.
No advertising, no selling data, no third-party trackers, no cookies for tracking. If email-based progress backup ships later, it will be opt-in and documented here first.
Questions: hello@runa10k.com