The theremin was the world first electronic musical instrument, created by a Russian inventor named Lev Sergeyevich Termen in 1919. The theremin's natural tone is quite close to a sine wave, and it is said that the sound is warm, resonant and healingful. However because of its spooky tone, the instrument has been used as the premier sound effects for horror and science fiction movies. ThereminSS, unlike the actual theremin, doesn't require any techniques nor proficiency. You can simply play it just by touching the inner side of the white dotted line. Enjoy the unique world of ThereminSS with a 3 octaves scale (the iPhone version features a 2 octaves scale)!

Added a volume slider at the bottom center of the screen in order to fix the problem that fade out doesn't work while you can play staccato notes with the stop button. When you fade the audio out, please make sure to tap the stop button.

Added the recording function!
It picks the surrounding sounds as well, and you can use it in many different ways such as recording your vocals or creating a voice memo. You can also send the recorded data via email. Note that the maximum attachment size of an email depends on the iOS device you are using. Please contact your cell phone service provider for further information. * A 10 seconds recording is around 450 kB.

* Support iTunes file sharing(

Added the play with other music app button on the right side of the record button (however, this disables the recording). For example, you can play along with your favorite songs on Music app.

Now you can select the audio file format when recording. If you want to send a file via email, record at "22kHz / 8 bit" to reduce the file size.

* Users who have a problem with the musical instrument app that doesn't make any sound. (

Range: C2 - C5, 3 octaves (37 tones) - iPad
Range: C3 - C5, 2 octaves (25 tones) - iPhone, iPod Touch
* Volume slider
* Display scale on keyboard
* Support orientation
* Record button / Play button / Stop button / Send the sound data via Email button
* Support iTunes file sharing
* Play with other music app button

What's New

Version 4.1

- Support for iOS 10

Ratings and Reviews

Fixed Pitch?


I'm no expert but shouldn't a theremin give you variable pitches (that haunting sci-fi sound)? Maybe I'm missing something. It would be cool to have gyroscopic controls for pitch variation, but this app has a great start already.

Just a bunch of notes and volume


I regret this purchase. All it is is a bunch of notes and volume. You can't control pitch or vibrate and there is just a volume slider. Yes you can record but this app is terrible in features. Get the theriminator it's much better.



I though this program would work like a theramin
Does by controlling by antennas on the left and right side of the Ipad. Disappointed.


14.9 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, Italian, Japanese, Spanish
Age Rating
Rated 4+
Copyright © 2010-2013 HDO All Rights Reserved.


  • Family Sharing

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

More By This Developer

You May Also Like