title: Can i create Web App to be used on smart-phones without internet ? How?
body: <p>I want to make cross - platform app which could be used for different smart-phones, and been advised to make 'Web App'.  </p>
  
  <p>Can 'web app' work without internet?
  How to do it, which programing language to use?</p>
  
  <p>thanks</p>