In order to appear in Gnome Software and KDE's Apper, Vocal should ship an AppData file:
http://www.freedesktop.org/software/appstream/docs/sect-AppStream-Metadata-AppData.html
In order to appear in Gnome Software and KDE's Apper, Vocal should ship an AppData file:
http:// www.freedesktop .org/software/ appstream/ docs/sect- AppStream- Metadata- AppData. html