Guitar Tuning - recommended press all next strings
Piano Tuning - for octaves 0,1,2 need use external mic.
Unlock octaves: Your subscription will renew automatically each year and payment will be charged to your iTunes Account within 24-hours prior to the end of the current period. You can turn off auto-renewal by going to your Account Settings after purchase.
Terms of Use: http://gv-apps.com/appsTermsOfUse.html
AppPure.com and the download link of this app are 100% safe. The download link of this app will be redirected to the official App Store site, thus the app is original and has not been modified in any way.