Privacy Policy

We collect as little as possible: no ads, no third-party trackers, no selling data — ever. You can use most of the site without an account at all.

Your lesson progress is saved only in your browser (localStorage) and never leaves your device. One cookie remembers your preferred language.

When you register we store: your name, email, a hashed password (bcrypt — we cannot see it), your lesson progress, and your saved diagrams. Your email is used for exactly one thing: password-reset links. No marketing.

The kids section (Prog Frog) works fully without sign-up and collects no personal data. Accounts are meant for grown-ups — parents and guardians.

From the settings page you can permanently delete your account — everything goes: account, progress, diagrams. Immediately and irreversibly. Or email hello@fayezeloraby.com.

The site is hosted on Vercel. The Python playground loads the Python runtime (Pyodide) from the jsDelivr CDN — your code runs inside your browser and is never sent to us.