In Brazil, people pay the highest fees and interest rates in the world for the worst banking services. NuBank knows that technology and design can solve this problem. The firm has developed from a core credit card product offering to a complete digital banking platform with a vast portfolio that includes personal lending; life insurance, which in three months reached 100,000 contracts; products for micro entrepreneurs; and instant payment services — NuBank accounts for about a quarter of all Pix transfers in the country.