Creating jQuery Mobile Tip Calculator App in

This video shows:

  • How to create a mobile tip calculator app in with jQuery Mobile
  • Build a binary for Android, iOS with PhoneGap
  • Instantly publish as HTML5 mobile app

The app is based on this tutorial.


  1. Hey Max,

    Thanks for a great tutorial. I managed to get the UI working just fine, however every time I ask it to calculate, it either doesn’t display anything, or it comes up with $NaN

    I was just wondering if you have any advice to help me to get it working

    Thanks in advance!


    1. Hi – double check the code in Run JavaScript action. You can add a console.log(..) after each statement to make sure you get the right values.

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