Tuner - gStrings
cohortor.org
吉他調音器 - LikeTones
LikeTones
临吉他调谐器 Pro Guitar Tuner
ProGuitar
GuitarTuna: Tuner,Chords,Tabs
Yousician Ltd.
Fender Guitar Tuner
Fender Musical Instruments Corporation
Guitar Tuner
TarrySoft
Guitar Tuner - Simple Tuners
ZipoApps
Easy Guitar Tuner
Tabs4Acoustic - The only guitar tuner you need
Guitar Tuner: Pro Tuning App
UXAPPS LTD