Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To buy and download iThereal by Zero Crossing, get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download


By Zero Crossing

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


iThereal for iOS is a multi-function Inter-App Audio App, virtual Theremin and MIDI controller, and an expanded Theremin instrument that allows for more modern Theremin gestures.

In many senses it is a classic Theremin but it has the freedom to incorporate newer techniques for playing and interfacing that were unavailable in its predecessor.

With iThereal iOS, the original Theremin's interface of proximity to the instrument's antennae has been replaced with a sophisticated use of touch gesturing and the ability to use an iOS device's internal Gyroscope to influence pitch and volume.

Using iThereal as a MIDI controller allows the performer to incorporate gesturing and Gyroscope functions to control almost any voice available through Inter-App Audio Hosts (such as GarageBand). Connect your iOS device through Wi-Fi or MIDI cable to send raw MIDI data using iThereal to a device that reads MIDI.

-Turn on 'Vibrato' in real time to color your sound without disturbing your musical decisions, choosing both depth and rate of modulation.
-A new feature we call 'Discrete Portamento' gives the effect of a real-time sequencer whose sequence is modified by the choice of your notes.
-Using GarageBand your instrument can be modified to include effects such as Reverb, Echo, etc.
-A thoroughly customizable User Interface.

iThereal iOS frees the musician to explore a sonic tapestry of unlimited possibilities.


iPhone Screenshot 1
iPhone Screenshot 2
iPad Screenshot 1
iPad Screenshot 2

Customer Reviews

would recommend : check it out

This app is awesome. I got some band members of mines together and we Put it into this thing called Gyro Mode, where u can select a Garageband instrument (we all used on our phones) Basically we found ourselves waving our phones around and experimenting with what movements made what sounds, what worked well together, etc. It also has Bluetooth which we got working on my friends speakers which was cool. Would def recommend for anyone looking for a solid collab tool as well as just somethjng to mess around with on your own. It's cheap as hell and I can see it being used by anyone, beginners or experts. Again would highly recommend

Wow what a cool app!

I've been using it to control and modify the sound of many GarageBand instruments, but I especially like what iThereal does with the Solar Sailer keyboard. And you can record what you are playing in GarageBand. Next, I'm going to see how it plays using the Logic Pro Remote app connected to my Mac.

View in iTunes
This app is designed for both iPhone and iPad
  • $2.99
  • Category: Music
  • Released:
  • Version: 1.0
  • Size: 4.6 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 7.1 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

This application hasn’t received enough ratings to display a summary.

More by Zero Crossing