8K Ultra HD Video Player by TWST Inc. is a multimedia software application designed for Android devices. The app supports all video formats, including MKV, MP4, M4V, AVI, MOV, 3GP, FLV, WMV, RMVB, TS, and more. It is a highly versatile video player that plays videos with high definition and supports 4K/ultra HD video files.

The app comes with a private folder that keeps your video safe from being deleted or viewed when others use your device. It also supports subtitle downloader and more, allowing you to adjust subtitle and audio. Additionally, it identifies all video files on your device and SD card automatically, making it easy to manage or share videos. The app provides easy-to-use controls for adjusting volume, brightness, and playing progress, and it offers multi-playback options, including auto-rotation, aspect-ratio, and screen-lock. Overall, 8K Ultra HD Video Player is an excellent video player for both Android tablet and Android phone users.