Price Size     Version Release Date
$9.99 7.0 MB     2.5 10-17-11

Back from the Gravetable

Curtis uses an unusual hybrid of wavetable and granular synthesis to create tones and timbres quite apart from the standard FM or subtractive synthesis fare. Add this app to your arsenal to create sounds you simply cannot squeeze out of any other synth, no matter how much you’ve twiddled its knobs.

Create a synthesizer from any recording, with endless temporal possibilities. Play the sound forward, backward, or even at a single point! Unlike scratching a record, pitch doesn’t depend on how quickly you move through the recording. Of course Curtis brings a scratch mode too!


Say, what's your source?

Curtis now comes preloaded with an exclusive sound set created by sound design pioneer Richard Devine! You can also load sounds through iTunes, record directly with your iPad, or paste audio from other applications. Try it with speech, singing, synths, jackhammers, or birds. Mangle your recordings or create soft, gentle textures.

A chromatic quantize mode rounds grain sizes to match the frequencies of standard equal-tempered tuning. In this mode, Curtis will sound in tune with your other MIDI instruments or soft-synths. Naturally, the old geometric mode is still available for your dissonant pleasure.

available in the app store
Download from iTunes

CP 1919

Price Size     Version Release Date
$9.99 1.1 MB     1.5 10-28-11

Strum a Liquid Harp

A physics-based fluid simulation drives an additive synthesizer, controlling a fat stack of up to 24 oscillators. The multitouch interface lets you control the fluid with your fingers, exciting the oscillators like strings on a liquid harp.

Various settings alter the fluid’s behavior as well as the resulting sound. Coax the fluid into a gentle motion, or crank the parameters for instant sonic madness.

feedback video

Wiggle and Spread

A large ribbon controller detunes the oscillators, creating rich, sonorous harmonies or the thickest dissonant cacophony. Meanwhile two independent LFO’s allow automated control of both oscillator spread and aggregate pitch.

A filter overlay mode lets you massage the spectrum, creating the perfect harmonic mix. Easily emulate low-pass, high-pass, or notch effects by simply drawing a filter curve across the oscillator stack.

available in the app store
Download from iTunes


Price Size     Version Release Date
$4.99 4.4 MB     2.0 2-16-11


Space is like an oscilloscope in reverse. Instead of merely viewing sound waves, Space lets you explore a huge range of timbres by sculpting the waves with touch. Add together two such oscillators, a unique Kuzmoscillator™ modulator, arpeggio, echo, and aliasing to create a truly broad palette of tones.


Sonic Sculpture

Draw a jagged shape for rich harmonics. Draw a smooth wave for smooth tones. Use a square shape to create hollow, flute-like sounds. Use the preset wave shape buttons as starting points for different timbres. The oscillators will morph to the preset shapes in time with the arpeggiator tempo.

available in the app store
Download from iTunes


Price Size     Version Release Date
$9.99 1.5 MB     1.1 10-19-11

Circles within Circles

We're all only too familiar with the loop, the building block of so much modern music. Donut takes things further with a loop of loops, a 3-D torus of sound! Inspired by some ancient dictation hardware, Donut lets you play with a stack of loops as though it was a 2-D surface, transforming linear audio into an auditory plane, accessible sequentially but along any 2-D vector.

Donut can record and play with multiple heads, recording or playing multiple positions at once. You can spread the heads vertically to access different portions of the Donut, or you can spread them horizontally to create an echo effect.

feedback video

Two dimensional time

You can use it like a phrase looper, by recording horizontally while using the step controls to step through vertical recording position. You can use it as a realtime processor by using ThruRecord mode. You can record and play at completely differently speeds. You can even record backwards!

available in the app store
Download from iTunes