Tiny Metronome

Tiny Metronome is an app that lets you turn your Android device into a metronome that can go from 20 to 300 bpm, allowing you to adjust it manually from the app's interface.

It's important to mention that, due to its minimal size (only 20 kb), Tiny Metronome doesn't include any visual reinforcement. As soon as you launch the app, you'll hear the metronome's beats, but you'll always see the same interface and options.

Another interesting feature lets you change the metronome's traditional 'clicks' for an adjustable tuning pitch that you can set between 392 and 470 Hz.

Tiny Metronome is a great metronome app for many reasons, but having an attractive interface is not one of them. Its minimal size, simple interface, and the fact that it works with pretty much any Android device are what make it a fantastic app.