Suggestions for play MKV on iphone?

Need suggestions on player that can play MKV and won't log for my iphone, better to be a free one

Get an andriod. Lol

Get imedia player, it lets you play any file type plus let's you do it over Wi-Fi! You can transfer the file from your computer to phone over Wi-Fi in seconds (if you have fast internet) but the only reason why it would lag is if your trying to play a HD Movie but I'm pretty sure iphone 4 and newer have the power to play HD Mkv movies.

https://itunes.apple.com/...35606?mt=8

I would suggest you try Vidon player, a quite new and free player that can play nearly all format videos on iphone.
You can transfer your video through Wi-Fi, and it can streaming videos from your ftp server and home sharing device.
Go ahead and have a try.

You can also convert your MKV file to iPhone mp4 format and then sync your video to your iPhone and watch it. You can find many free video converter to do that, such as freemake video converter, format factory and so on. You can also use aiseesoft total video converter platinum. It works with any video format and convert fast and with great output video/audio quality.

I use AVPlayer for.mkv and all other video on iPhone and iPad

You can try VidOn player
It plays MKV without lag and other format as well.
It also has functions such as streaming, ftp samba support etc.