Your data

Privacy

What I collect (almost nothing), what stays on your device (everything else), what your rights are.

Privacy at a glance

  • No accounts. No signup. No email collection.
  • No cookies for tracking, sessions, or anything else.
  • No third-party trackers (no Google Analytics, Facebook Pixel, Hotjar, Segment).
  • No data leaves your device, except optional aggregate page-view analytics if the site operator has enabled them.

What stays on your device

All of it:

  • Profiles, settings, sessions, daily activity, custom texts.
  • Per-key and per-bigram timing data used by the adaptive engine.
  • Theme preference, keyboard layout selection.

This is in your browser's localStorage under keys prefixed tt:. Open dev tools → Application → Local Storage to see it. Clearing browser storage clears it.

Optional aggregate analytics — currently active

This site runs Umami — a privacy-friendly, cookieless aggregate analytics platform. The full dashboard is public: see /analytics/ for the live view, no login required.

What Umami records:

  • Page URL visited (e.g. /practice/).
  • Referrer URL (where you came from).
  • Browser + OS (e.g. "Chrome on macOS").
  • Screen size bucket.
  • Country (derived from IP, then IP discarded).
  • Event names + structural properties: which modes are picked, when sessions start / finish, which library books are opened, which settings get toggled. None of these include user-typed text, the actual quote / paragraph content, or any string the user input.

What Umami does NOT record:

  • Cookies (none — Umami uses anonymous hash-based session keys).
  • IP address (discarded after country lookup).
  • Name, email, account, or any persistent identifier.
  • Cross-site tracking. Nothing follows you off this domain.
  • Keystroke content or accuracy of individual characters.

Umami can be blocked by any privacy extension or by adding umami.is to a host blocklist; doing so does not affect the typing experience.

Cloudflare Web Analytics is wired in but disabled by default.

Cookies

This site uses no cookies. Your settings live in localStorage, which is functionally similar but stays on your device and is not sent with HTTP requests.

Your data, your call

  • Export — Settings → Export JSON gives you your full profile.
  • Import — Settings → Import JSON brings it back on another device.
  • Delete — Settings → Clear all data wipes everything from this device.