VESCO - Client Application for customers: provides features that help tenants and building management interact directly via mobile devices easily and conveniently. CONTRACT - View contract details COST - View service fees for each leased site - Payment history - History of electricity / water use FEEDBACK & REGISTER OPERATION - Send request with photos attached to the Management Board to help the receiving unit solve quickly. - View the processing history of each request NOTIFICATION - Receive notifications, instant news from the Management Board.