Does CamPlus support audio when viewing events?

I have video events with audio that I hear when viewing the events in the app, but there is no audio when I view the events in the CamPlus event viewer here: Live stream - Wyze

Does this event viewer support audio? Also, are we supposed to be able to download videos from here?

I have the free 14 day CamPlus trial. Does that make a difference in terms of features?