Premium.

This app's interface is designed so you can use it quickly and easily, with big buttons that you can easily tap even when you have an instrument in your hands or are otherwise engaged. Some of the best features included on Soundcorset Afinador y Metrônomo are a synthesizer that listens to the sound and a tuning fork that play the exact note. This app also has a completely customizable frequency that you can adapt to your needs, as well as a metronome; if you can't hear it for some reason, you can also switch it to a light mode in which the metronome flashes with the beat.