Custom branded extensions are live apps that empower streamers to enhance their channels with an added layer of interactivity between the streamer, audience, and content.

Custom branded extensions are indeed live apps that integrate directly into a Twitch channel. They provide an additional layer of interactivity by allowing developers to create unique experiences that streamers can use to engage their audience. This can include anything from mini-games and polls to loyalty programs and interactive overlays, fostering a more dynamic relationship between the streamer, their viewers, and the content being broadcast. Therefore, the statement accurately describes the function and purpose of custom branded extensions on Twitch.