Free Apps with 'Sync Audio & Video' feature for Mac
VLC is a free and open source cross-platform multimedia player and framework. Owned by the non-profit organization VideoLAN.
Free and simple video editor that supports a variety of file types and automated tasks.
With iMovie for iOS and macOS, you can enjoy your videos like never before. It’s easy to browse your clips and create Hollywood-style trailers and stunning 4K-resolution movies.
Video editing software designed for ease of use that supports 4K encoding and exporting.
Syncaila is a tool for video editors, which performs a completely automatic synchronization of audio and video footage from multi-camera shoots.