To "download" Dolby Digital or Dolby Atmos on Android, you typically don't need a separate app download because the technology is usually of supported devices . If your phone supports it, you can simply enable it in your system settings. How to Enable Dolby on Supported Devices
Most modern smartphones from brands like Samsung, OnePlus, Motorola, and Xiaomi come with Dolby Atmos pre-installed. Samsung Galaxy S24 download dolby digital for android