Downloading 8k Player 4.6 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. This Mac application was originally developed by Dimo Studio. The software is included in Audio & Video Tools.
From the developer:
With invincible Blu-ray playback, this top Blu-ray player for Mac inherits high quality multimedia cinema-style playback design. And beyond a multifunctional video app, it gives you an impressive immersive Ultra-HD viewing experience. No matter what you're expecting to have— stunning crystal-clear pictures, delicate dolby digital sound, or "ONE-KEY" to create GIF for sharing — 8K Player for Mac will change how you experience movies and videos.
You may want to check out more software for Mac, such as Final Video Player, Nox App Player or Cisdem Video Player, which might be similar to 8k Player.