TV Connect lets you view/cast your phone images video audio on your Apple TV smart TV connected to various streaming devices. This app is free and has no restrictions.

Following devices are supported

Apple TV
Google Cast
Fire TV
Roku (Install companion app when suggested in this app)
Kodi aka XBMC
Android TV (Install companion app from Play Store on your TV http://bit.ly/2bZBRn6)
Smart TV's with DLNA / UPNP capability(All devices are not supported yet Some feature might not work)

Media from
Local phone storage
UPNP/DLNA library