Are there alternative layouts to the framework base apps for smart phones?

Yes, basically you can have the framework base apps extended in various ways and with numerous features. Regard them as your foundational base apps, a solid foundation, pre-approved by the app-stores, with fastest turnaround and launch opportunity. Then you can customize and build upon it with numerous extensions and features.

See also https://help.lightcast.com/how-can-i-make-our-on-demand-and-live-streams-available-for-mobile-devices-and-tablets