Contracoin (CONTR) is a cryptocurrency that allows users to purchase and sell goods and services using a mobile app. It is a decentralized digital currency that can be used to make transactions online and offline. Contracoin uses blockchain technology to ensure secure and transparent transactions. It can be bought and sold on various cryptocurrency exchanges, and its price is determined by supply and demand in the market. Contracoin is a promising investment option for those who believe in the future of decentralized digital currencies.