Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
Streema is a free online radio tuner to discover, share, and listen to radio stations with your friends. Listen to more than 70,000 radio stations and watch more than 10,000 TV stations here at the Streema directory.
For the most part Roku doesn't create channels. You have to reach out to Streema and ask them to create a Roku channel/app.
Thanks for the insight, but the app is already on Google Play and Apple Store so I didn't think Apps need to develop on a new platform. I thought Roku added apps from those Sources to add to their list of apps.