thanks for your questions
FollowUp is powered by the Loop HQ backend (loophq.com) and is in essence the task extraction functionality broken out into a stand alone product.
1. when a user connects a platform (google for example), the Loop backend runs the metadata from the platform's content through its graph database to identify where does a specific email or file fit in to the user's world. based upon that analysis, Loop scores each contact and by association, each content item with a "Loopscore" which determines the relative importance of that contact or content. this is a continuously iterative process and is impacted by the user's continued behavior.
2. I refer you to our privacy policy which outlines the considerable protections and restrictions we have put on ourselves in order to safeguard user information https://loophq.com/privacypolicy
I would be happy to discuss further