Apps with 'Sync Audio & Video' feature for Android
VLC is a free and open source cross-platform multimedia player and framework. Owned by the non-profit organization VideoLAN.
Video editing software designed for ease of use that supports 4K encoding and exporting.
SyncPlayer is an unofficial open source Syncplay client for Android. It connects to Syncplay servers to sync video playback between two or more users. Use it to watch videos with your friends online.
Easiest way to create effective videos stories that automatically sync with the music or your voice, all in real-time!.