The emergence of cryptocurrency through the Blockchain technology, which provides crypto-trading, banking and investment platforms; causing dramatic changes in the world of finance and e-commerce, as well as business in general. The decentralized nature of blockchain technology eliminates the problems faced in centralized business systems. Studies show that the number of cryptocurrency users and companies continues to grow. Despite the growth and financial fecundity of companies engaged in cryptothermia, many startup companies find it difficult to imagine the work of the world itself. Delays, high listing fees and transaction fees make them hostages. These enemies lead the victim to find a platform that is free, reliable and reliable where transfers will be carried out easily and transmit in a few seconds. The long awaited and usual platform with the functions mentioned above is "Ripaex". https://ripaex.io/ Introduction to Exch...