CC Whistle


  • Unique hybrid keyboard that can handle portamento and vibrato freely
  • Select from three keyboard sizes: 25, 31, and 37 keys.
  • Shiftable keyboard range arbitrarily.
  • Up to 2 touches can be handled simultaneously to make simple whistling duet.
  • Built-in reverb.
  • Built-in pitch tuning mechanism.
  • Play along with songs in your music library with the built-in play along player.
  • Changeable gradual color in the screen to your liking.
  • Supports dark mode.
  • A detailed user guide is built in and ready to go

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Any interworking functions such as Inter-App Audio, AUv3, and MIDI, and function for recording and playback the performance are currently not supported.


  • Requires iOS 12.0 or later
  • Compatible with iPhone, iPod touch and iPad