Theremin I/O

by FFFF00 Agents AB · Music · $2.99

On the App Store since November 2013 · Data updated 2026-10-28

Theremin I/O is made and published by FFFF00 Agents AB. AppBrain is an independent app data site and isn't affiliated with FFFF00 Agents AB. The app name, icon, screenshots and description belong to FFFF00 Agents AB and are shown as published on the App Store.

4.00

5 reviews

$2.99

Screenshots by FFFF00 Agents AB, from the the App Store listing

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AppBrain's verdict

Established

Rating on App Store: 4.00; 5 ratings
Last updated: September 27, 2017
Size: 17.5 MB

It doesn't have enough ratings yet to judge what users think.

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Store listing

By FFFF00 Agents AB, from the App Store

Description by FFFF00 Agents AB Written by the developer, not by AppBrain. Click to read.

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

Safety and technology

Found in the app by AppBrain

Price: $2.99
App size: 17.5 MB
Content rating: Everyone

Technologies used by Theremin I/O

Releases

Updates seen on the App Store

Version: 1.3
Launched: November 2013

No changelog data

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This app is not ranked

About the app and developer

About Theremin I/O

Theremin I/O is a music app developed by FFFF00 Agents AB.

User Ratings

Theremin I/O is rated 4.00 out of 5 stars. The rating is based on 5 ratings.

App Information

Theremin I/O costs $2.99. The app size is 17.52 MB. The latest version available is 1.3. The last update was on September 27, 2017.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since November 2013.

Developer information for FFFF00 Agents AB

FFFF00 Agents AB

Address:

Frequently asked questions about Theremin I/O

Is Theremin I/O free?

No. Theremin I/O costs $2.99 on the App Store.

Is Theremin I/O still available?

Yes. Theremin I/O is on the App Store, and the last update we saw was on September 27, 2017.

How large is Theremin I/O?

Theremin I/O is 17.52 MB.

Is Theremin I/O suitable for children?

App Store rates the content of Theremin I/O as suitable for everyone.

How do people rate Theremin I/O?

Theremin I/O scores 4.00 out of 5 stars, from 5 ratings on the App Store.

Who made Theremin I/O?

Theremin I/O was developed by FFFF00 Agents AB. It is listed in the music category on the App Store.

What are the best alternatives to Theremin I/O?

People looking at Theremin I/O also look at these music apps: Theremin Touch, iAutoharp, Warm Distortion, SimplyChorus, Circle Of Fifths Pro.

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