None. SENTINEL runs entirely on your local machine. The HTTP server binds to 127.0.0.1 (localhost only). No data leaves your computer.
None. No analytics, no tracking, no usage reporting. We have no idea how you use SENTINEL, and we prefer it that way.
SENTINEL makes no outbound network connections except an optional connectivity check (a single TCP probe to 1.1.1.1:53) which transmits zero user data. This check determines whether to show a "network available" indicator in the dashboard.
License keys are verified entirely offline using Ed25519 cryptographic signatures. No activation server is contacted. Your email address is used only as a license identifier embedded in the key and is never transmitted anywhere.
SENTINEL does not use cookies. The dashboard is served from localhost and does not set any cookies or use browser storage (localStorage, sessionStorage, IndexedDB, etc.).
SENTINEL shares no data with any third party. There is nothing to share. Purchases are processed by Gumroad, which has its own privacy policy for payment processing.
We will update this policy if our practices ever change. Given our localhost-only architecture, we do not anticipate collecting any user data in the future.