Not useful at all; can't even read or send messages! Their service overall is not all that helpful for me, but the Android app is basically entirely pointless. Also, can't really just use the website successfully on a smartphone either. The second picture showing the 'seller dashboard' is basically all this app is. If that is useful to you (and worth a monthly fee), great, but the already poor eBay official app already has everything this does and much more - no need for another app for a different looking view for an extremely low subset of features.