Download of SoTubes 1.7.8 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This free Mac application is an intellectual property of Frontier App. SoTubes for Mac relates to Lifestyle Tools.
From the developer:
SoTubes plays YouTube video on your Mac, in the meantime, streams audio to your Sonos speakers.
You may want to check out more software for Mac, such as Murasaki - EPUB Reader, TwitCasting Alerts or Loudbook, which might be related to SoTubes.