# Theremin I/O

> Touchless music instrument

Canonical page: [https://chrome-stats.com/d/id669456913](https://chrome-stats.com/d/id669456913)

## Overview

- **ID:** `id669456913`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** FFFF00 Agents AB
- **Category:** Music
- **Rating:** 4.00 / 5 (5 ratings)
- **Version:** 1.3
- **Last updated:** 2017-09-27
- **First published:** 2013-11-06
- **Size:** 18 MB
- **Data as of:** 2026-09-21
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/theremin-i-o/id669456913)
- **Website:** [http://theremin.io](http://theremin.io/)

## Description

Play with light – Theremin I/O turns your iPhone into a touchless music instrument. It uses your camera and flash to measure the distance to your hand, this signal is then processed by a synthesizer to generate a tone.

Features:

  • Old-school synthesizer
  • Constrain input to scales (harmony quantization)
  • 8 sound presets with effect controls
  • 50+ scale presets
  • Use as a MIDI controller (requires in-app purchase)
  • Learn fast with the tutorial overlay

For more information visit http://theremin.io

## Rankings

- #476,114 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id669456913)