Do users need to log in?

Yes. All GNXcapture users need to login using the same credentials as if they are using GN4 in-house. The user account is the same so they have access to their personal work area as well as all the areas assigned to them. GNXcapture is really just a client into the same system, limited only by the size of the screen and available cellphone coverage speeds.

Is there a two-way communication with the system or is it just an upload?

Communication is two-way. Content with notes can be downloaded to the smartphone, edited and sent back into the copyflow.The tasks and assignments can be sent to users by the newsroom who will see it on their smartphone and act accordingly.