Track the pattern underneath your days. The Pattern Key is an interactive daily frequency journal — a single self-contained app you own outright.

✦ Daily frequency check-ins — log the signal, watch the pattern surface
✦ 100% private: runs entirely in your browser, your data never leaves your device
✦ Export, import, and print your journal anytime
✦ No account, no subscription, no cloud — one file, yours forever

Delivered as a downloadable HTML app. Open it, start logging, find the key.