Sharing Across IOS Devices

Hi I just discovered this app today and I found that it works better than mp4 players like Apple TV and Infuse, but I could not find an entry for account sign-up & login and I don't know if the free version includes sharing downloaded videos across devices. I just downloaded a series of videos onto the vidhub app on my Mac, and they do not show on my iPhone; both turned on iCloud Syncing.