iPhone Screenshots


Theremin app which supports wide range as 9 octaves.
You could play a melody by practicing to control wheel & iPhone tilt.

Dynamics control:
- Tilt your iPhone to forward
45deg: ff

Pitch control:
- Rotate your iPhone to clockwise or counterclockwise
1oct per half rotation(counterclockwise 90deg, clockwise 90deg). Range: 1oct
- Rotate big wheel in the screen
1oct per half rotation. Range: 8oct

t: Theremin
o: Ondes Martenot
s: Strings
h: Harmony
v: Vox
c: Synth Cat

0: no effect
s: Short Echo
l: Long Echo
vl: Very Long Echo

Correct (Pitch correction):
0: no correction
s: soft
m: middle
h: hard

What’s New

Version 3.0.0

Simplified the design, and functions

Ratings and Reviews

1.0 out of 5
1 Rating

1 Rating

adam saverian ,

The physics make it very difficult

I consider this purchase to have been a waste. The physics make it very difficult. Wish I could get my money back.

Jazzsammich ,

Excellent, and worth the upgrade! :)

One of the most expressive and useful of the instrument apps for live performance. :)

Fox7ero ,

Great Program

A fun and enjoyable thermin simulator. Great use of the accerometer.

App Privacy

The developer, Masao Suzaki, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

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