SpaceDSA Privacy Policy

Last updated: May 2026

SpaceDSA is a Chrome extension and companion site operated by Castle Point Innovations LLC. We collect the minimum data needed to make spaced repetition work.

What we collect

Problem progress. Which LeetCode problems you solved, when, and your self-rating. Stored locally in your browser and synced to your account if you sign in.
Email address. Only if you sign in or request a lead-magnet guide from this site.

What we do not collect

The contents of your LeetCode solutions.
Your browsing activity outside of leetcode.com.
Payment information (the extension is free).

Third parties

We use Firebase (Google) for authentication and sync, and Loops for email. We do not sell data to advertisers.

Contact

Questions: contact@castlepointinnovations.com