This app is a harmony generator or rotator instrument. It creates harmony from a single note in a rotating mode. One voice follows the input pitch at a fixed interval and the other voice rotates through the pitch shift settings. This produces three output notes - the original voice, a pitch-shifted voice at a fixed interval and a third voice that changes.
The follow pitch shifter follows your input voice at a fixed interval. The three rotating pitch shifters will rotate - that is, a new input pitch will advance to the next rotating pitch shifter. Set the mix balance to blend original input and effected signals. Analyzer speed adjusts the sensitivity of the signal processing.
ChordRotator is available on iOS devices, such as iPhone and iPad.