No, Listary 2 uses the Dropbox Datastores for syncing.
Because we believe we can offer a faster and more reliable syncing with the Dropbox Datastores.
Yes, as long as you use Dropbox Syncing you can share your lists with other Listary users.
No, at the moment you can’t edit your lists online.
Smart list are agregators of items. You can turn them on or off, and they will allow you to see all your items or all your starred items in one screen.
Yes, Listary supports URL scheme based actions which you can use to integrate with apps like Drafts or Launch Center.
In case you need, here is a list of the supported actions: