Using HTML5
Here is how add HTML5 <audio> tag to your mobile app in Appery.io. Add the following JavaScript on screen load event:
$('').appendTo('#j_3');
Here is how the app looks in Google Chrome (desktop):
We are working on adding an actual component for the <audio> tag. We already have HTML5 <video> tag.
One more thing. Mobile browser support for the <audio> still varies. iOS seems to have good support while Android support is not as good yet (no support on Android 2.2).