https://bhuvan-tech.github.io/pickabook/ is a Dcentralized Web App which is used for Book Lending and Buying using Crypto Currency REVACoin(RUC).
First install METAMASK wallet and create an account or login and change from Ethereum Mainnet to Ropsten Test Network and then import REVACoin(RUC) using this contract address -" 0xE65b90cAad7B65651D747289378a5c086449E976 " and then you are ready to deposit or transfer REVACoin (RUC).