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K.O. II

K.O. II is a compact native beat-making instrument for quick patterns, rhythm practice, and portable sound experiments on iPhone and iPad.

Getting Started

  • Choose Drum, Percussion, Bass, or Keys, then tap a pad to play.
  • Select a pad and tap the 16 step buttons to build a repeating pattern.
  • Use PLAY, REC, CLICK, FX, ERASE, and the built-in demo patterns to shape a groove.
  • Drag the VOL, BPM, SWING, and TONE controls vertically to adjust them.

Audio and Playback

K.O. II uses a native iOS audio engine and automatically handles common interruptions, route changes, and foreground recovery. The app does not require an account or cloud service.

Troubleshooting

  • If playback is silent, check device volume and connected Bluetooth or AirPlay outputs.
  • If another app or phone call interrupted audio, return to K.O. II and press PLAY or tap a pad again.
  • If audio still does not resume, close and reopen K.O. II.

Contact

For support, bug reports, or App Store review questions, email .