All in all th best ecommerce option for joomla based stores!
With Movm there is no separate app to download, and any new additions are pushed out without extra work. When vocombined with the "add2home" extension you can create a complete mobile app for iOS devices and for Android too!
My only wish would be for some more plugins for it.
I wanted to charge for some downloads and this combined with the also excellent "PayPerDownload" extension met all my needs and more...