I have a task to create a mobile application for Android and iOS with similar functionality to https://play.google.com/store/apps/details?id=en.bizzfm.android&hl=en
App for playing paid music - music played via probably streaming radio from the shoutcast server.
Free access for 14 days, after which paid access using an Android or iOS subscription.
Design on the client's side
The app on iOS and Android, can be based on some ready-made components (it will not require high performance).