Not what I expected
It simply displays the online interface in a window, like a browser does. It’s not an actual app, so most of the “global key features” listed in the description are Google’s work, not the developer’s. As a matter of fact this app is actually a small browser that can just browse one site. For some reason the native os x notifications don’t work on Yosemite either, so to me this app is really useless. I’d like to contact the developer and possibily have a refund.
djanjio about
GBox - email client for "Inbox by Gmail", v1.3.1