Best way to implement a page or formatted text that can be edited by app owner

Hi guys,

Sorry about the badly written topic title. I am a beginner and making a radio streaming app. I want to have a page with the schedule on that displays the show times. I want to be able to edit the text after the app launches as the DJs have a tendency to change shows a lot so it will need to pull the data in from somewhere rather than be fixed in the app.

What do you feel would be the absolute simplest way to do this?

JSON api?
Webview of a blog page?