Privacy Policy

What we store. Learning progress (roadmap topics, solved problems) is stored only in your browser via localStorage and never leaves your device. If you create an account, we store your email and a salted password hash — nothing else.

Code you trace. Submitted code is executed in a sandboxed environment to generate traces. Guest runs are counted by a salted hash of your IP address, which cannot be reversed to identify you.

Cookies. We set a single signed session cookie when you log in. It contains no personal data beyond a session identifier and is not used for advertising or third-party tracking.

Analytics. We do not run third-party analytics or advertising scripts.

Contact. Questions about this policy: hello@algoviz.app.