iDensity vs BLEASS Motion FX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iDensity
This app offers real-time asynchronous sound file granulation, enabling users to create a wide array of audio effects. It provides tools for time/pitch manipulation, texture generation, buffer recording, and complex sound exploration. Designed for musicians and sound designers, it offers flexibility for live performance, studio composition, and on-the-go sound design.
- Real-time sound granulation
- Time/pitch shifting and jittering
- Texture generation
- Buffer recording and manipulation
- Scrub pad exploration
- Dynamic envelope shaping
- Audio Unit (AUv3) support
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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.
BLEASS Motion FX
This app provides a creative workflow for sound design with 11 distinct effects. Dynamically modulate these effects using a versatile motion sequencer to explore new sonic territories. Load multiple instances for complex sound manipulation.
- 11 unique audio effects
- Versatile motion sequencer
- Dynamic parameter modulation
- Load multiple instances
- Cross-platform availability (iOS, Windows, macOS)
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BLEASS Motion FX offers a new and creative workflow to effects sound design. Choose between 11 different effects and dynamically modulate it thanks to a highly versatile motion sequencer. Load as many instances of Motion FX as you want and unveil new sonic territories! BLEASS Motion FX contains 11 different effects which you can modulate precisely thanks to an intuitive and comprehensive sequencer. The 11 effects included are: - Low Pass Filter - High Pass Filter - Band Pass Filter - Volume - Pan - Pitch Shifter - Frequency Shifter - Ring Modulator - Warmth - Bit Crusher - Delay Each effect has a parameter automated by the sequencer and can have one or more secondary parameters. Pick an effect and then modulate it dynamically thanks to the motion sequencer. When switching effects, the motion sequencer keeps its state to invite you to new sound design ideas! BLEASS Motion FX is also available for Windows & macOS More detailed information are available on https://www.bleass.com/motionfx/
Screenshots
Verdict
The clearest difference is update cadence: iDensity at monthly against BLEASS Motion FX's every 54 months. iDensity also leads on ratings volume (48 vs 13). BLEASS Motion FX's advantage is review sentiment (100% vs 86%) and price ($7.99 vs $9.99). On rating, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
iDensity costs $9.99 and BLEASS Motion FX $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.9 for iDensity against 4.8 for BLEASS Motion FX. Both are backed by a comparable volume of ratings — 48 and 13 respectively. Written reviews are what separate them: 86% of iDensity's written reviews are positive against 100% of BLEASS Motion FX's.
iDensity ships an update monthly, BLEASS Motion FX every 54 months. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.
| Parameter | iDensity | BLEASS Motion FX |
|---|---|---|
| Price | $9.99 | $7.99 — better |
| Rating | 4.9 (48 ratings) — better | 4.8 (13 ratings) |
| Positive reviews | 86.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 48 — better | 13 |
| Update frequency | Monthly — better | Every 54 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | apeSoft | BLEASS |
Customer experience
iDensity
BLEASS Motion FX
Bugs and requests
iDensity
Reported bugs
10 issues- Occasional crashes (historically)
- AudioBus issues (historically)
- Preset management not working correctly (historically)
- Transport sync not working (historically)
- GUI bugs (e.g., maximizing a strand)
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- Craquements, grésillements (cracking, crackling)
- X/Y snapshot morphing not working on iPad 1
- Sample import issues (cut off)
- Unable to record from microphone (historically)
- App crashes upon recording (historically)
Requested features
10 requests- Independent MIDI note control over pitch for each stream
- Alphabetical preset sorting
- Load existing project name into 'Save As'
- Multi-port output for AUM/Ape Matrix
- Built-in wave-editor for sample cutting
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- Ability to determine loop length
- Motion sequencer or assignable LFOs
- Sync AU3 transport to host (historically)
- Add MIDI note and channel select as modifier/controller
- Dark mode option
BLEASS Motion FX
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iDensity
No in-app purchases
BLEASS Motion FX
No in-app purchases
