Privacy Policy
Last updated: July 3, 2026
The short version: the app collects nothing. It has no accounts, no analytics,
no telemetry, and makes no network calls. Your hands, stats, and study data live in files on
your own computer and never leave it.
1. The application
- No account is required or offered. We don't know who you are.
- No telemetry or analytics. The app does not phone home, track usage, or send crash reports.
- Your data stays local. Session history, statistics, and settings are stored in standard application-data folders on your machine. Deleting the app's data folder deletes them. We never see them.
2. This website
- The site is a static page with no cookies, no trackers, and no analytics scripts.
- It is served by Cloudflare, whose infrastructure processes standard technical data (such as IP addresses) transiently to deliver the site and protect it from abuse, per Cloudflare's privacy policy. We do not receive or store this information.
3. Email
If you email us, we'll have your email address and message; we use them only to reply, and we don't add you to any list.
4. Future changes
If we ever add features that process personal data (for example, license activation for paid plans — which would validate a license key and machine identifier), this policy will be updated first and the data collected will be the minimum required for the feature.