I saw this app arrive on the store this morning and though I’d buy it later on, but now it has vanished! Did anyone else notice it briefly appear on the store? I got the description, but I can’t find it on iTunes at all now.


Crystal is a full featured semi-modular synthesizer, ideally suited to creating lush evolving soundscapes. Long a popular synthesizer on the desktop, it is now available for the iPad and iPhone.Browse through the included sounds and use the 1 octave keypad to trigger notes to produce evolving, rhythmic, or melodic sounds. Create your own sounds with a single button press using the breed feature. When using an iPad, you can delve into a tweakers dream by using the extensive editing features to sculpt sounds to your heart’s content.Crystal features both subtractive synthesis and frequency modulation (FM) synthesis. It offers abundant modulation control with over 90 parameters which may be modulated, multi-stage envelopes with graphical editors, extensive tempo sync of envelopes/lforates/delay times, built-in effects for chorus/flanging/comb filtering/echoes, and a band splitter for effects processing by frequency band. Not only that, Crystal has wave sequencing and granular synthesis. The musical applications for Crystal are literally boundless.There are two different versions of Crystal to choose from, Crystal and Crystal XT, so you can select the one that is best for you. Crystal is the basic version. With this version you can browse sounds, play notes, and create new sounds, taking advantage of its powerful semimodular synthesis engine.Crystal XT (available soon for a premium price) adds MIDI keyboard input via the iPad’s camera adapter and sharing of patches with the desktop version.Crystal runs on both the iPad and the iPhone/iPod Touch. Because of the limited screen space on the iPhone however, the editing pages are not available when running on that device. But on the iPhone you can still browse sounds, play notes from the keypad, and create new sounds with the Breed feature. Note that Crystal is not associated with Spectrasonics. The app store company name is incorrect.


  1. “Spectrasonics is a big developer of very nice VSTis. Weird situation.”

    Afaik developer of original Crystal is/was working for Spectrasonics after creating Crystal, but Crystal it self has nothing to do with them.

  2. It is BACK in the app store as of this afternoon. My purchase worked last night and then I needed to resync my iPad with itunes to haul it down. Pretty neat from the little bit I played with iy.

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