Automatically identifies all video files on the device and SD card, enabling easy management, sharing, or deletion of files.

The "premium/full" variant of such applications generally ensures that all advanced features are unlocked, removing in-app purchases or subscription requirements, and offering a completely ad-free experience. It is highly regarded for its ability to handle modern codecs (like HEVC/H.265) without needing extra plugins.

Features a built-in equalizer for audio enhancement.

Features a "Private Folder" or "Video Locker" that uses a password to keep sensitive videos hidden from others.

Allows downloading and synchronization of subtitles (including SRT, SMI, VTT, etc.), along with audio track management.

Supports HD, Full HD, 4K, and 1080p videos with smooth performance, often utilizing advanced hardware acceleration.

I can confirm if this version fits your specific needs or recommend similar alternatives. MX Player - Apps on Google Play

is a comprehensive, high-performance multimedia player for Android devices. This application is designed to provide premium, uninterrupted viewing experiences for both video and audio, typically supporting high-definition, 4K, and Ultra HD content without ads. Key Features of the MPlayer Premium APK (v1.0.23)