With all web applications, certain permissions must be granted in order for the app to function. This page details the permissions you grant the DocuTube AddOn when you install from the AddOn Store.
General privacy and terms for all AddOns and extensions by Brian Bennett can be found at https://ohheybrian.com/privacy.
All authorizations are handled by Google's OAuth flow. There is no data collected or stored as a component of using the AddOn.