Privacy

Short version: we cannot lose your data because we never receive it.

What is stored

Your notebook, review schedule and study statistics are saved in your own browser using localStorage, under keys prefixed with snaplex:. This data is not sent to any server, and clearing your browser data removes it.

What is not collected

• No accounts, so no names, emails or passwords.
• No photos or camera access — the practice decks use curated illustrations.
• No selling of personal data (there is no personal data to sell).

Measurement

Anonymous traffic measurement (Google Analytics 4 with IP anonymization) may be used to understand which pages help people. It does not read your notebook contents.

Advertising

Some pages may display advertising to keep the site free. Ad partners may set their own cookies subject to your regional consent choices.

Backups

Because progress lives in one browser, clearing site data or using private browsing starts a fresh notebook. Keep that in mind on shared computers.