A free program for Android, by Tabs4Acoustic - Free guitar tools.
The Ultimate Mandolin Tuner is a free, handy tool for tuning your mandolin or any other stringed instrument, especially one that has a small scale. The app can be used as a portable tuner for all kinds of stringed instruments.
To tune your mandolin, simply place the microphone of your smartphone near the string you want to tune. You will then hear a tone, which is the exact pitch you need to play.
The app can also be used to find the exact string you want to tune. All you have to do is place the microphone near the string, wait for the sound to come and then tune the string by playing it. The app will tell you what note you need to play, so you won't have to use a music scale.
The app has been designed to be as simple as possible, so even if you have no prior experience with electronic tuners, you will be able to get started right away.
