Privacy

Your drill handle and progress are stored in this browser, on your device — not on our server.

If you download a progress file, it is a plain JSON file that only you hold; importing it on another device is the only way your state moves anywhere.

We count visits with cookieless, aggregate analytics (Vercel Web Analytics): no cookies, no personal identifiers, no cross-site tracking. We do not run ad trackers.

We do not store IP addresses or user-agent strings beyond what our hosting provider’s server logs require, which are rotated on a short schedule.