Afinador de Violão is a free Android app developed by App Developer SM, which helps users tune their guitar by ear. This app is an excellent tool for guitar players who want to tune their instruments without relying on external devices. With a simple interface, it allows users to click and tune their guitar strings easily.

The app is straightforward to use and offers an excellent feature set. It is an excellent choice for those who are new to guitar playing and want to learn how to tune their instruments. The Afinador de Violão app is a handy tool that provides a practical solution for guitar players who want to tune their instrument without any hassle.