iPhone Screenshots


******* monoHarp is free until the 1st of January 2021 *******

monoHarp is a chromatic ribbon synth.

Choosing the notes - Turn the individual notes of the chromatic scale on and off by using the buttons to middle-right. The display at the bottom of the screen resizes automatically to fit in 5 octaves of the selected notes. This allows you to play quick arpeggios and scales in any key.

Key - To change the key, tap the plus and minus icons next to the key display on the middle-left of the screen.

Sounds - To the right of the key display you can select six sounds: Sine, square, triangle, chip, harp, and piano.

Digital Delay - The delay is controllable on the x/y pad and has a delay time of between 0-1000 milliseconds. The y axis of the pad controls the delay volume, between 0dB and -20dB.

Distortion - The distortion is also controlled on the x/y pad (by the red line that appears after the distortion is turned on).

To toggle the x/y pad control, tap the small x/y button next to the effects on/off buttons.

Wah - The wah-wah effect is turned on at the top of the screen and is controlled by where you play the notes on the vertical axis. The bottom of the screen is a high pass at 200Hz, and the top of the notes is around 4kHz.

Library - Tap the library icon (the musical notes) at the top of the screen to select from an extensive library of chord / scale formulas.

Presets - Four presets can be saved by holding the save icon and tapping the save slots to the left of the interface.

Have fun.

What’s New

Version 4.0

It's much better.

App Privacy

The developer, Dan Jefferies, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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