Alternative Plex Client for iOS?



Hi all,
given the mess that is v.5 for iOS I am looking for an alternative. Maybe the official Plex iOS app will be updated to something remotely usable in the future but for now I can't let my kids use it.

Any good alternatives working with Plex Server libraries?

I see Infuse is being used by quite a few but before purchasing it, can I add libraries to it for viewing and can it sync offline?