FormKey Lite 4+

The Intuitive MIDI Controller


    • 5.0 • 4 Ratings
    • $0.99

iPhone Screenshots


Introductory Offer! For the launch of version 1.0 we're offering FormKey & FormKey Lite at a discount. Purchase now & lock in to the future of mobile music creation!

FormKey & FormKey Lite is the first MIDI Controller that makes you a better musician as you use it. Utilizing shapes to define notes and colors to define octaves, FormKey's beautiful isomorphic keys aid in pattern recognition and makes discovering new chords easier than it's ever been.

This is a MIDI Controller focused on playability and ease of use, but we're just getting started. Download now to lock into all future updates. We're going to make something truly special and unique. We want to give music to everyone.

Unintended bonus children love playing with the sound feature on FormKey, so if you have little ones give them a jump start on learning music today.

What’s New

Version 1.0.1

- Smaller keys
- Minor UI Fixes

Ratings and Reviews

5.0 out of 5
4 Ratings

4 Ratings

OзO ,

Cool idea

Wish dragging was available without a joystick though

Developer Response ,

Thought about implementing it this way with a lock button. Waiting on SwiftUI to update some features to be able to add this.

App Privacy

The developer, Polyhedra, 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

    Up to six family members can use this app with Family Sharing enabled.

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