Guitar Tuner Free – GuitarTuna 5.0.1 Apk Free Download Details: Name:  Guitar Tuner Free – GuitarTuna Category:  Tools Current Version:  5.0.1 Screen Shot: Description: GuitarTuna is the most popular tuning app in the world! The ultimate tuner for guitar, bass, ukulele and all popular string instruments. GuitarTuna has been downloaded over 90 million times and is used by beginners