Blockchain is one of the buzzwords of the modern business world, but there is still a lot of ambiguity and uncertainty surrounding it. Beyond speculations on Bitcoin price, real use cases start coming up, the biggest one is DeFi, or decentralised finance. It's the seed of a new financial service system based on the Ethereum blockchain. Argent is a mobile application providing access to this new DeFi world. We'll explain you in simple words what Blockchain is and why it's a coming revolution. We'll show you how we've built a great user experience without compromising on security.