Niufibra SAC is a free Android app developed by MK Solutions Aplicativos. It is a customer service tool that allows users to access various features such as generating second copies of bills, checking daily or monthly consumption of their connections, paying monthly bills online, and viewing protocols and web security guidelines in accordance with Anatel's regulations.

The app's interface is user-friendly and easy to navigate. It provides a convenient way for Niufibra customers to manage their accounts and access customer service. With Niufibra SAC, users can quickly and easily find the information they need without having to call customer service or visit the website. Overall, Niufibra SAC is a useful and practical app for anyone who wants to manage their Niufibra account on the go.