Any Android or Iphone App to watch movies

For android I use PlayerPro. It plays everything.

I use VLC player on my iPhone. Seems to work pretty well and it's free.

I have and use a few such as MX, VLC for general movie viewing, Plex Media Server or Skifta for viewing movies on my NAS. I hav'nt streamed on my phone so don't know what apps are good or not but it also depends on the type of phone as some apps don't work on older android phones.