SMS Campaigns App integration

I'm looking for more information regarding the SMS Campaigns app integration for ringcentral. While using the app, the only option when selecting this feature is to go into a web browser and use the tool in the web app gallery after being asked to sign in. I'm not seeing an option to integrate this into the ringcentral app and have it appear in my installed apps section. Having this integrated would be exactly what I'm looking for. Any help from anyone is greatly appreciated!