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Fourier Touch

By KonakaLab

This app is only available on the App Store for iOS devices.


***If this app produces no sound, please let me know your device and iOS version. Best regards.***

Play sound by multi-touch!

Max 5 (or 8, iPad) harmonics by multi-touch. Base frequency, pitch, and volume can be selected continuously. Types of signals are five (sine, spud square, square, sawtooth, and triangle). You can see the waveform, and learn the relation between tone and waveform.

How to use
Base frequency: touch, tilt (switched by double tap)
Volume: touch, tilt (switched by double tap )
Harmonics: multi-touch
Range: shake
Signal type: double tap

What's New in Version 4.0

Recording for 4-inch retina display version. This function is sold by in-app purchase.


iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPad Screenshot 1
iPad Screenshot 2
iPad Screenshot 3
iPad Screenshot 4

Customer Reviews

Holy cow!

This is great! I came here looking for a drum machine and got something much more interesting and creative. Seriously, guys, great job!


Enjoy it alot

No Sound!

Using Ipad 4, ios8, no sound on this or any other KonakaLab app. Seems to work BUT-no sound!

Fourier Touch
View in iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Music
  • Updated:
  • Version: 4.0
  • Size: 1.0 MB
  • Seller:

Compatibility: Requires iOS 4.3 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. Recording$0.99