Like its popular iOS counterpart, Infuse 4 for the fourth get Apple TV (http://firecore.com/infuse) provides a smooth way to enjoy a wide array of videos types from wherever you may happen to have them stored — be it a Mac, PC, NAS, Wi-Fi drive, or a server app like Plex, Kodi, or Serviio.
 
Additionally, Infuse 4 — available at the Apple App Store — provides automatic movie details and artwork fetching, integrated trakt.tv sync (for keeping watched progress in sync on multiple devices), subtitle downloads from OpenSubtitles, and more. You can stream via AirPlay and Google Cast.

Infuse 4 provides playback of 4K (Ultra HD) content with integrated Dolby and DTS surround sound. You can add videos from iTunes, Dropbox, Google Drive, Skydrive, Box, email attachments, and more. You can connect with UPnP/DLNA apps like Plex, Kodi (XBMC), Serviio, WMC, PS3 Media Server, and others to browse, stream, and download videos.

What’s more, you can use AirDrop, FTP, or a web browser to transfer videos. No iTunes syncing or cables are required. With Infuse 4, you can automatically add cover art and other metadata for your movies and TV shows from TheMovieDB and TheTVDB. You can share what you’re watching or things you've rated on Facebook, Twitter, and trakt. Other Infuse 4 features include 64-bit support, variable-speed scrubbing, volume boost, great battery life, and 28 different translations.
 
Infuse 4 is a free download. However, it does encourage paid, in-app upgrade options.