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

Improved slider control
New sound engine

Ratings and Reviews

2.3 out of 5
3 Ratings

3 Ratings

j f w ,

too basic

It's too hard to use. You have to hold your finger on the gate button the whole time. You can only cycle through wave patterns one by one in order with a single button - you can't go back or skip to what you want like you can with a knob. And I don't see how it is much like a theremin - no similarities in the controls or sounds.

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.

Chicago app reviews ,

No sound!

No sound on iPhone 8
iOS 12.3.1


Paul Betowski
11.1 MB

Requires iOS 8.2 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

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

More By This Developer

You May Also Like