Hosted web version actually serves a dual purpose - it is a full online app (for both desktop and mobile) and also acts as a central sync server for desktop clients.
There's a fully featured web version which is tailored for desktop and isn't responsive. There's a separate frontend for touch based devices which doesn't have a complete feature set, but scales nicely for both smartphone and tablet layouts. But this is a brand new feature released just days ago so it has probably rough edges.
Hosted web version actually serves a dual purpose - it is a full online app (for both desktop and mobile) and also acts as a central sync server for desktop clients.
There's a fully featured web version which is tailored for desktop and isn't responsive. There's a separate frontend for touch based devices which doesn't have a complete feature set, but scales nicely for both smartphone and tablet layouts. But this is a brand new feature released just days ago so it has probably rough edges.