1. zStream uses WebAuthenticationBroker for login function, and doesn't have access to password user types in login screen, all it gets out of the authorization is an access token from twitch.
2. zStream requires user's authorization of 3 permissions to access twitch account:
1). User_read: to get user's id from the access token, showed as "View your email address" on the authorization screen, although zStream never uses user's email address.
2). User_follows_edit: to check user's follow status and follow or unfollow a streamer, showed as "Manage your followed channels" on the authorization screen.
3). User_subscriptions: to check user's subscription status, showed as "view your paid subscriptions" on the authorization screen.
Information zStream stores locally
zStream stores user setting and the access token locally on the device it is running on. User can revoke the access token anytime by visiting twitch.tv user account connection setting.
Information zStream transfers out
zStream doesn't transfer any private information out of the device it is running on.
By using zStream, you signify your acceptance of this policy. If you do not agree to this policy, please do not use zStream. Your continued use of zStream following the posting of changes to this policy will be deemed your acceptance of those changes.