PIX is a payment app that allows you to pay your bills and use it to buy things from the merchants.

It is an electronic payment system that uses mobile phones and tablets. It allows you to pay bills, buy digital goods, and make payments to businesses, among other things. It was developed by the company Chaves and is based on a technology that is more than 10 years old.

It is a mobile banking application. You can pay your bills, use it to buy things from the merchants, and use it to transfer money to your friends.