MX Player is the most popular and the best app you and me ever saw. Its layout and Design is awesome. You can change the theme of mx player easliy. It supported many formats like mp4, mkv and many more. It supported also 2k formate. Its features or functions are really awesome.
The best feature is you can zoom in and zoom out very eaisly. We can also increase brightness according to over neccesabilty. It also has a feature of SW Decoder it can increase voice of any video. You can remove or add subtitles. In it there is a function of Background play. In it you can play video can do anything in oyr phone video cannot stop. In short MX Player is best of best video player app I ever saw.