Customize Android App (in Android Studio) design and add Features like Real-time Chat (Using Nodejs or GCM) and Vuforia SDK

PLEASE BID ONLY IF YOU CAN WORK WITH THE BUDGET - NO UPFRONT FEES - ALL MILESTONES WILL BE UPLOADED ON ACCEPTANCE Customize Android App (in Android Studio) design and add Features like Real-time Chat (Using Nodejs or GCM) and Vuforia AR etc See the app to be customized: [login to view URL] See the Augmented Reality SDK you'll be using: [login to view URL] App Code and Customization design will be provided. Features to be Added: 1. Real-time Chat. 2. Book the seller (like how you book for flight tickets). 3. AR (Display Seller Shop and product Listing, Scan ) with Vuforia SDK 4. QR-Code scan and generator for seller's shop and product listings. 5. Charge for product listing after first 0-100 listing. 6. Integrate users mobile contacts (with invite and chat like in Whatsapp) 7. Design customization (PSD design will be provided). All the App designs and source codes are available to customize and add features and links will be provided. More details will be provided to the selected bidder.