Heroku loading strategy with an Ionic/PhoneGap App

Does anybody have any experience in how best to deploy my Ionic/Cordova/PhoneGap app for mobile.

It's an app with a really small footprint and I would like to avoid been rejected from the App Store. Is it acceptable to load all data from Heroku with PhoneGap? Or should I build all the UI bits into the PhoneGap app?

Internet is needed to be able to use the app anyway.

Would really appreciate any ideas. Thanks.