A free program for Android, by Tajaouart Mounir.
Guitar Tuner - 6 strings is a free and simple-to-use app for guitar tuning. This is a useful tool for both beginners and advanced players. It’s a complete solution for those who want to get their guitar tuned. We’ve made it easy to use and tune your guitar in the best way. It doesn’t matter if you’re a beginner or an expert. We’ve designed the app for everyone. You don’t need to have any knowledge of music or be a professional to use it. All you need is your phone and a decent set of fingers.
