With its accelerometer, digital compass, and sound generation capabilities, the iPhone has become a popular platform for theremin simulator applications. Rather than making you navigate the iTunes store for each app yourself, we've put together a round-up of all the theremin apps we could find. Many of these are also available for the iPod Touch or iPad. If you know of one that's not listed, please let us know and well keep this list up to date.
Aetherphon features both pitch (forward/backward tilt) and volume (side-to-side rotation) controls, 4 waveforms, and a spiral oscilloscope-like display. The synth engine seems to be playing individual notes rather than a continuous tone, but perhaps a future update will make it just a bit more theremin-like.
Price: Free (lite version) / $1.99 (full version)
Air Melody features an innovative set of controls for both pitch and volume and allows you to play along with tracks via iTunes. Be sure to read our full review of AirMelody to learn more about this great app%21
Bebot definitely wins on the cuteness factor, and its synth engine isn't bad either%21 This touch-based application allows timbre and effects modification and even has a built-in theremin sound preset. It also supports multi-touch, allowing you to play multiple notes at the same time. As you slide your finger around the screen, the little animated robot "sings" along with your tune.
An iPhone adaptation of Yoshimoto's Otamatone toy. Play with one or two fingers, tilt back and forth to control volume. Cute.
YouTube: Otamatone - YOSHIMOTO KOGYO
The title "video theremin" is a bit misleading as Sound Scope doesn't really use the built-in camera. Instead, you pinch and gesture on the screen to control the sound. It's still quite fun to watch the oscilloscope-like visuals change in time with the sound being produced. You can also select from sine, square, or sawtooth waveforms.
Price: Free (lite version) / $0.99 (enhanced version)
A pitch-only theremin app that's free to try out. The enhanced version adds selectable waveform, resonant LPF filter, and reverb controls. A slider allows volume control, but it's not really set up for use as a real-time control during a performance.
Thereminator is a touch-based simulator that allows both pitch and volume control depending on where you touch the screen along the X and Y axes of the grid. Settings allow control of tremolo, echo, frequency display, and note duration. The sound generation on this app is particularly good in our opinion and is quite close to a real theremin.
Therimax is a musical instrument designed for the iOS. Using the camera, a hand-held magnet, or the touch screen, Therimax allows you to create music without physical touch, without frustrating callouses or irritating music lessons, and without knowing a lick of music. All simply by waving your hands in the air. The era of gestural music is at hand!
Read a more in-depth description of Therimax here.