M4U
![](https://www.inf.puc-rio.br/en/wp-content/uploads/sites/2/m4u.jpg)
Company focused on the mobile payment sector and recharge of Pre and Post Paid services. It develops digital services by perfectly balancing four concepts: Mobility, Interactivity, Information Security and Innovation.
Company focused on the mobile payment sector and recharge of Pre and Post Paid services. It develops digital services by perfectly balancing four concepts: Mobility, Interactivity, Information Security and Innovation.