The tuner for stringed musical instruments. Absolutely free, no annoying ads! Fully autonomous and does not require access to the Internet, nor any other additional permits. This tuner allows to tune a variety of musical instruments: six- and seven-string guitar, bass guitar, gusli, balalaika, domra, lute, ukulele, koto, shamisen, violin, viola, cello, double-bass, kalimba, oud, banjo, guzheng, gayageum. Lightweight application with a highly efficient detection algorithm. Less memory and CPU