• Great app, buuut ... ★★★★★
    I can't get the preset management working properly. Every time I load a new preset, it maintains the samples from the last preset. I followed the instructions from the manual to reload the factory presets, but I still have my own samples from the last thing I did loaded. Still a great app, even with the missing preset bit, just not working at the best of its capability.
    By GregRocksSoHard for Version 3.1
  • Surper Grains ★★★★★
    A superb app for graular textures. Hardware synths are an absolute joy to use, however when it comes to granular synthesis, the options are very bare. Apesoft has given us the answer, all praises due! As another reviewer stated, I too desired a midi note on/off option, and then i found the app iPulsaret -bingo! If your seeking to take a plunge into granular synthesis i highy recommend both of these apps.
    By Oatsnmaple for Version 3.1
  • Pure genius ★★★★★
    Pure genius...changed my life
    By 2 DEUCES for Version 3.1
  • Great, but missing a needed feature ★★★★★
    Apesoft apps are released incredible, and only grow in power over time. That said, I believe there is lacking function in iDensity which it's performance interface would benefit from for. IDensity is missing independent midi note control over the pitch of each of the 6 streams. As it stands now, control of pitch is controllable by everything under the sun EXCEPT a midi note # (there is a global midi note and channel selection, but nothing for each independent stream's pitch keyboard). I was thinking about leaving 4 stars, but there is nothing wrong with the app as it stands now, but it seems a curious omission not to be able to control something with a keyboard ..which is represented on screen with a keyboard (pitch). Ideally midi note # and channel select would be available as a modifier/controller, or be configurable under settings. Fantastic app, and a big user of Apesoft's Granulr suite.
    By Alyn qz for Version 3.1
  • Audio Patchbay baby! ★★★★★
    The audio patchbay takes this to a new level! Glad to see the devs are still pushing the limits of an already great app.
    By Zjenji for Version 3.1
  • Perfect granulator ★★★★★
    So that's two lengthy, well-considered reviews of this tool that were eaten by iTunes. No time for details now, so if you are into granulation and appreciate a full featured granulator with an intuitive but by no means simple interface, fork over the 8 bucks now. Extra tip: Use Studiomux to route the six tracks in iDensity into six tracks of your favorite DAW--in my case, ableton. Beautiful.
    By Sjdjdudmc for Version 2.7
  • Best Granular Sound Design Tool I've Used on iPad ★★★★★
    Ape Soft also makes iPulsaret which as of now I do not own. The only reason I don't own it is because I have iDensity. This is the granular app to have on your apple device. This app is powerful. You've got 6 streams of granular synthesis which can all run at the same time if you'd like. You can have a stream looping while pitch shifted with delay while another stream is frozen on a particular grain with delay and reverb and still have 4 more granular streams left. You can load your own samples into each stream, add fx and tinker for hours. You can load the app in Audiobus or AUM as an effect. In AUM each of the 6 streams can be used to live process the incoming audio. You can export the audio to AudioShare if you'd like. This app is up to date, well thought out and very powerful.
    By Me knows for Version 2.7
  • Wonderful Sound Manipulator ★★★★★
    Great for long evolving sounds, soundscapes, manipulating sounds, textural drones and just general fun. Everything this developer does is great.
    By Cianoc123 for Version 2.7
  • I am ape for the Ape! ★★★★★
    Fantastic updates to an already fantastic app! Recommended!
    By Ben Efitofadoubt for Version 2.5.5
  • Simply the best. ★★★★★
    The best app there is for layered soundscapes, drones, glitchy textures, or lush ambience. A must for all experimental iOS musicians. New update is, if I could only find a midi controller with 200 knobs and faders to take full tactile control of the depth of this app. Sensational.
    By Utica Crib for Version 2.5



iDensity is rated as a Killer App by Apps4iDevices. iDensity is a new real-time software designed for asynchronous sound file granulation, a genuine granular playground able to generate a wide range of usual and not so usual effects: time/pitch shifting, time/pitch jittering, intricate textures, grain fountain/pulverizer, recording and manipulation of buffers, complex scrub pad exploration, dynamic envelope shape and many more. iDensity for iPad will give you all the basic and advanced tools you need to manipulate sound in subtle and surprising ways. All these features are packed in an optimized, user-friendly, visually sharp interface that is easy to access when fast-improvising live, composing in a studio, or sound designing at home and on the go! You will have the power, freedom, and flexibility to create like never before – on your iPad! Control and shape grains, anytime, anywhere with Density for iPad. + Six Granular Streams + Six Remote Audio Units Host support + Full Instr and FX AudioUnit (AUv3) support + High Density Granulation + Sampled and Live granulation + In-Stream Echo and RM post Fx + Multichannels Audiobus Inter-App Audio support + MIDI, Virtual Midi and Network + Sharing common audio files via iTunes, Dropbox AudioCopy etc... + Snapshots Presets Morphing Pad + Post Fx chain: Parametric and High Shelf Filters, Classic Reverb and Dynamics Processor + Scrub Recording and playback + etc.

Release Notes

+ New Matrix 16X16 Audio Routing
+ New Support for AUv3/IAA Host in the Matrix
+ New Slider/Knobs resizable range for the LFO/MIDI/Accel etc…
+ AUv3: Play/Stop according to HOST
+ LIVE switch controlled by MIDI
+ Freeze Button works in Sync Mode
+ Scanning reverse in Sync Mode
+ User Interface, Improved
+ Buffer Export saved as 16 bit 44.1 kHz
+ Added 6 AB/IAA AudioSenderPorts for the six Granular Streams
+ LFO Start/Stop bug fixed for multiple instances
+ iPhone X compatibility
+ MIDI Channel for note on/off/pg, fixed
+ Some minor iPhone UI bugs, fixed

App Details

  • Version 4
  • Created by apeSoft
  • Sold by Alessandro Petrolati
  • Released on September 16, 2011
  • File Size: 21 MB
  • Price: $7.99
  • universal This app is designed for both iPhone and iPad


by Stuart Kilbride (Red Sky Lullaby)