Metronome is a free Android app developed by Crunchy ByteBox that provides musicians with a precise tool to keep time. With this app, you can set the tempo of your music between 10 and 250 beats per minute, and choose from a range of selectable sounds starting from CHz) to C# (1046 Hz). Additionally, you can choose to emphasize the first beat and adjust the layout color to your preference.

One of the best features of this app is its ease of use. You can adjust the tempo with just one click, and the sound keeps playing even when the display turns off. Moreover, it supports both portrait and landscape mode, and you can move the app to your SD card to save space on your device. It also stops playing when you hit the "BACK" button. The app requires the "Read Phone State" permission to stop the metronome with incoming calls, and "Network Access" permission to show ads.

Overall, Metronome is a great tool for musicians who need a reliable and precise metronome to keep the beat. If you have any suggestions or problems, the developer encourages you to write an email. Have fun making music with Metronome!