E Theremin – Electro Theremin 4+

Paul Betowski

    • 2.8 • 4 Ratings
    • $2.99

iPhone Screenshots


Vintage Electro–Theremin, Onassis Martino style synth.

This app is inspired by early classic slider controlled synthesisers such as the Ondes-Martenot, Trautonium and Tannerin/electro-theremin.

The E Theremin has two oscillators that generate a rich fat analogue tone, with a choice of 5 waveforms (saw, square, triangle, sine and theremin wave) octave shift. The E Theremin can achieve portamento, vibrato and quarter-tones with precise control.

– Ideal for professionals looking for an alternative to the keyboard controlled synth.
– Great for anyone interested in synthesizers, particularly early analogue.

In 1928 Maurice Martenot created one of the first electronic musical instruments, entitled; the Ondes-Martenot, the prerunner to the theremin, similar in sound but with a very different type of user interaction, an inspiring slider on a cord was used. Later in the 1950s Paul Tanner invented the Tannerin a.k.a. Electro Theremin. The Tannerin used the same slider controls as the Ondes-Martenot to control pitch. The Tannerin went on to play a large role in records such as The Beach Boys “Good Vibrations”.

Summarized Features
– Two oscillators
– 5 waveforms
– New classic style theremin waveform
– 4 octave scrolling keyboard
– 4 octave slide control
– Reverb with 11 presets
– Delay (can preform endless loops)
– Fat analogue sound
– Retina GUI

What’s New

Version 1.1

This app has been updated by Apple to display the Apple Watch app icon.

Improved slider control
New sound engine

Ratings and Reviews

2.8 out of 5
4 Ratings

4 Ratings

Isaac May ,

Sounds Could Be Better

The UI and controls are nice, but the sounds aren't very reminiscent of either type of Theremin. Would love to see something with a little more than just two oscillators, and something that has more of the Theremin sound!

Beach boy fan 2000 ,

Could use an improvement.

I love this electro-theremin app, as I have always wanted to learn how to play the theremin, since I heard “Good Vibrations” when I was 7/8 years old. I wish the theremin could make the correct sound that is heard on “Good Vibrations”. That would be a great improvement update.

robertwp ,

Great app

Ignore the previous reviews. They didn’t know what they were getting. This is a fun theramin with old school analog oscillator controls.

App Privacy

The developer, Paul Betowski, has not provided details about its privacy practices and handling of data to Apple.

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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