Harmony and macOS (Catalina / Big Sur)

With the release of macOS 10.15 Catalina, 32-bit apps such as MyHarmony will no longer launch and instead display an error message. For more information, see Apple's announcement regarding their transition to 64-bit technology.

MyHarmony and Catalina / Big Sur

On macOS 10.15 and above, 32-bit apps such as MyHarmony or Logitech Remote Software will no longer launch and instead display an error message.

Click here to download our new 64-bit app “Harmony Desktop” for Catalina & Big Sur.

  • This new Harmony Desktop will support only the following remotes Harmony 200, 300, 350, 600, 650, 665, 700, Touch, Ultimate One, and 950.
  • For Hub based remotes, you need to use the mobile app or lower version of Mac or a Windows computer.
  • This 64-bit software does not work in lower versions of Mac.
  • Old MyHarmony software (32-bit) is not supported in Catalina.
  • If you have a remote on Logitech Harmony Remote legacy software, such as the Harmony 880, 900, One, 1000, 1100, etc., an updated version which will work on macOS 10.15 Catalina is available in the faq section of our downloads page.
  • If you are using our legacy software, Logitech Harmony Remote Software, there will be a delay in having it supported on macOS 11.0 Big Sur. We recommend holding off on upgrading to macOS 11.0 Big Sur if you need to access your remote’s account. You can continue accessing your Logitech Harmony Remote Software account by using a Windows computer or a mac computer running macOS 10.15 or lower.

When using macOS 10.15 Catalina (or higher), if you're using Harmony Hub or a hub-based remote such as; Harmony Elite, Companion/Home Control, Smart Control, Ultimate Home, or Ultimate, you can continue to use:

  • The Harmony mobile app on iOS or Android
  • The current MyHarmony app on a Windows
  • The current MyHarmony app on a macOS 10.14 or lower
Elite Home Control Home Hub Hub Smart Keyboard Smart Control Companion Ultimate Ultimate Home Ultimate Hub Pro

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