Well is there an app that can play the mentioned type of file smoothly on an iPhone 5S?
Hey there!
Our app can play 1080p MKV files without conversion if its being streamed off a DLNA / AirPlay server, including your own computer. Any decent internet connection would allow fluid playback. I'm not 100% sure if it can play MKV files stored on the iPhone itself, however. I don't have the filetype on hand to test it.
The device we used to play the file was actually an iPad Air, though we've had no complaints from users on an iPhone or other iPad device. It's currently being optimized for the iPhone 6 / 6+.
I can't post links yet, but you can either google Creation 5 or look for our post in the iPad section.
Sorry for the shameless self-promotion :biggrin:
I'm not sure what the policies for contacting users directly are here - I'd love to send you a free code so you could try it yourself.
Apart from ours, I have a list of apps that play MKV files though not in 1080p, such as PlayerXtreme HD. I'm assuming you're looking specifically for one that can play full HD though.