QuickTime Player, from Apple, allows the playback of QuickTime movie files (.mov) and lots of other file formats including, audio, still images, graphics, etc. Developed by Apple Inc.
License: Freemium
MPlayerX is a versatile media player with extensive format support and customization options, making it ideal for advanced users. In contrast, QuickTime Player offers a more user-friendly experience with seamless integration into the macOS ecosystem, but with limited format support and customization.