Draftmate's browser extension collects no personal information.

What it does: on FFPC, DraftKings and Underdog draft pages it reads the draft board you are already viewing and sends it to the Draftmate companion app running on your own computer at 127.0.0.1 (a loopback address). That app stores your rankings and draft history locally and does the scoring. Nothing about your drafts is sent to us or to any remote server, and the extension itself makes no remote network requests.

The extension stores your own settings — selected ranking format, weighting preferences, display options — in browser storage on your machine.

It does not collect personally identifying information, authentication credentials, payment details, location, search terms or browsing history. It contains no analytics, tracking or advertising code. Your data is never sold or shared with third parties, and is never used to determine creditworthiness.

Full policy: https://getdraftmate.com/privacy.html