AcePlayer is a free video player for Android phones and tablets that supports fast and stable playback of 4K/UHD videos. It is also a powerful video downloader that can quickly download HD videos in all formats. The app allows you to hide personal videos in private folders, ensuring your privacy is protected. With AcePlayer, you can download movies and enjoy the audiovisual feast that it brings to you.

The app's key features include fast playback of all HD, UHD, 4K, 1080P videos, smooth playback of all videos in various formats, pop-up window playback, and super-fast HD video player and video downloader. AcePlayer also has an auto-detect feature for local videos, A-B Repeat and loop mode, smart gesture operation, background download, multiple download, and sleep timer.

AcePlayer also offers an all-in-one video downloader that allows you to download online hot videos in high resolution at lightning speed. The app also has a popup video player that lets you play videos in a pop-up window for easy multitasking. Additionally, AcePlayer has a background video player that lets you play videos in the background and enjoy them while doing other things. The app also has a private folder feature that lets you keep your private videos and movies in password-protected folders.

Overall, AcePlayer is a full-featured video player that is completely free. The app is constantly being updated to provide a better user experience. If you have any suggestions or feedback, you can contact the developers at xxx.