IEX function has been built into the imToken 2.0 international version (utilizing Atomic Token Swap smart contract), developed jointly with Kyber Network. Through this function, users will be able to refer to real-time exchange rates and exchange digital assets seamlessly. The exchange rate is not regulated by imToken but is provided by Kyber Network. Generally speaking, the rate is a little higher than the market, but it's really convenient.
Kyber Network is a decentralized exchange service provider that allows users to convert digital assets instantaneously and securely.