OnePlayer supports playing all video formats, including 4K/Ultra HD, with high-definition playback. The app also supports watching videos online and offline. You can download videos from any website with this app. OnePlayer supports setting a lock for your private video vault, protecting your private videos from being deleted or seen by others. ? Features ? - Support casting videos to TV - Play video in the pop-up window - High-speed video downloader - Private Video Vault to protect privacy - Support watching videos online and offline - Powerful built-in player to play downloaded videos - Easy to control volume, brightness, and playing progress - Multi playback option: auto-rotation, aspect-ratio, screen-lock, etc - Support ALL video formats, including MKV, MP4, M4V, AVI, MOV, 3GP, FLV, WMV, RMVB, TS etc OnePlayer top features ? Full-featured Video Player OnePlayer supports fast and stable playback of all video formats. Fast playback of all HD, ...