A free program for Android, by ALLPlayer Group.

ALLPlayer is a free, cross-platform video player for both PC and Android devices. It allows you to watch movies and videos in a variety of formats such as MP4, MKV, MOV, AVI, MPG, FLV, WMV, etc. 

ALLPlayer also supports a wide range of audio formats including MP3, AAC, AC3, OGG, etc. You can also download subtitles in various languages.

To watch your desired movies and videos, just install the software on your PC or laptop, then install the Android version of ALLPlayer on your mobile device, and you’re all set. You can watch movies on the go without having to worry about file compatibility.