Is the Knowledge App free? Knowledge Network Help July 22, 2019 21:07 Updated Knowledge is available for free as an App for iOS, tvOS and Android phones and tablets. Related articles Is the Knowledge App available on my device? Can I access Knowledge Network on Smart TV browsers? I live in Canada, but video on the Knowledge App is not working How do I cast from my Android phone? What Apple devices do I need to use AirPlay on my TV?