Pitch Perfect (Pitch Pipe)
DepollSoft
Perfect Guitar
Revontulet Soft Inc
Perfect your Pitch
Clood On Musica
Perfect Pitch Trainer
klisis
完美的吉他调音器
o16i Apps
吉他!
On Beat Limited
Perfect Guitar Tabs & Chords
Sensor Notes
Pitch Shifter
Music Topia, LLC
Pitch Gauge - 屋顶应用程式
Pitch Gauge LLC
Pitch Tuner
Jakob Wankel