Hi,
I can build this app which will be used by customers to access their bills through login and many more as per your requirements.
Relevant Skills and Experience
Android Studio, Java
Android Latest Features,Facebook/Twitter/Google Api,Google MapKIt,Video/Audio Streaming,Push Notification,Graphics Design,Animation,UIKit,Database/Addressbook,GPS,In App Purchase
Proposed Milestones
$30 USD - Complete app