A free program for Android, by Yamaha Corporation.

The official Yamaha Music Metronome app offers you the best experience when it comes to playing your favorite songs. This is because it offers a unique way of keeping time with ease and is extremely simple to use. 

The app is free, so you don’t have to worry about anything. It offers 36 levels that you can set to any tempo. There are also buttons that allow you to make fine adjustments. You can also set the time signature of the song. 

It is possible to save the settings in My List, so you can quickly change the settings for each song.