BLEASS Granulizer vs GRFX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BLEASS Granulizer
Transform audio into evolving textures and soundscapes with this granular effect processor. Slice audio into grains and modulate parameters like volume, pitch, and playback direction with a real-time 3D visualizer. Sync to host tempo for dynamic sound design.
- Granular effect processor
- Real-time parameter modulation
- 3D visualizer
- Randomization controls
- Tempo syncing
- Multi-bus audio input
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BLEASS Granulizer is an innovative granular effect processor crafted for musicians, producers, and sound designers who want to transform incoming audio signals into rich, evolving textures and immersive soundscapes. It works by slicing audio inputs into small "grains" and reassembling them through real-time modulation of different parameters that you can visualize thanks to a 3D visualizer: Modulate - Volume - Pan (represented by width in the visualizer) - Size ( = grain’s duration) - Density ( = frequency of grains generation) - Offset ( = the amount of time between record and play represented by the depth in the 3D visualizer) - Backward/Forward Playback Direction - Shape ( = grain’s envelope, represented by the height dimension in the visualizer) - Warmth ( = strength of the distortion applied to the grain) - Tune ( = grains can be pitched up or down according to different modes: “Fine” / Chromatic / Major / Minor / 5th / Major 7th / Minor 7th / Octave. The amount of randomization can be set with the “dice” knobs. Density, grain size, and offset range can be freely synced or beat synced to the host’s tempo. Touching and holding the visualizer modifies pan and density. BLEASS Granulizer takes up to 4 sources from different busses as inputs (compatible host required such as AUM). When multiple busses are on, each grain is randomly extracted from one of the available sources. BLEASS Granulizer is your unique granular texture effect for reshaping any audio source into a dynamic granular soundscape in ways you've never imagined. Check out www.bleass.com/granulizer for video tutorials and more info!
GRFX
Transform ordinary audio into unique sonic textures, evolving soundscapes, and rhythmic glitches. This app offers precise control over sound manipulation with a unique pitch controller, multiple LFOs, and a flexible multi-effect chain. Create complex and immersive audio transformations in real-time.
- Granular engine for textures and rhythms
- Harmonic Triangle pitch controller
- Multi-effect chain with probabilistic routing
- Four self-modulating LFOs
- Real-time audio sculpting
- AUv3 plugin and standalone app
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GRFX is a powerful and creative granular effects processor that turns ordinary audio into extraordinary sonic landscapes. Slice your sound into grains and reshape them into evolving textures, shimmering chords, rhythmic glitches, haunting drones, and more. At the heart of GRFX is the Harmonic Triangle – an intuitive 3-way pitch controller that lets you morph simple tones into lush pads, arpeggiated patterns, or abstract gestures. Whether you’re aiming for organic soundscapes or synchronized stutters, GRFX gives you precise control over the flow of grains and modulation. Build complexity with four self-modulating LFOs, a multi-effect chain with probabilistic routing, and an elegant drag-and-drop modulation system. Shape your sound, modulate nearly every parameter, and sculpt immersive audio transformations in real time. Key Features: - Granular engine for creating textures, rhythms, chords, glitches, drones, ambiences, and more - Harmonic Triangle for 3-way pitch control, detuning, and microtonality - Built-in Chord Selector with 32 triads for instant harmonic richness - Grain envelope shaping for plucky, smooth, or abrupt grains - Buffer size, division, sync, and freeze controls - Rhythmic synchronization for tempo-synced effects and patterns - 4 LFOs with self-modulation and drag-and-drop assignment - Modulation panel & view mode for streamlined modulation management - 2 Multi-Effect slots (Filter, Distortion, Delay, Peak EQ, Chorus, Phaser, Bitcrusher, Reverb) with probability-based routing - Dedicated Send FX with Delay and Reverb in series or parallel mode - Flexible mixer section for sculpting wet/dry balance and routing AUv3 Audio Unit plugin – requires an AUv3-compatible host app such as Logic Pro, GarageBand, AUM, or Cubasis. Standalone version included.
Screenshots
Verdict
The clearest difference is update cadence: GRFX at monthly against BLEASS Granulizer's every 26 months. GRFX also leads on review sentiment (78% vs 67%). BLEASS Granulizer's advantage is rating (4.9 vs 4.6) and ratings volume (39 vs 11). On price, 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
BLEASS Granulizer costs $6.99 and GRFX $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BLEASS Granulizer holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 39 and 11 respectively. Written reviews complicate that: 67% of BLEASS Granulizer's written reviews are positive against 78% of GRFX's, so the app with the better star average is not the one people write more warmly about.
BLEASS Granulizer ships an update every 26 months, GRFX monthly. The most recent releases landed on September 24, 2026 and September 9, 2026 respectively.
| Parameter | BLEASS Granulizer | GRFX |
|---|---|---|
| Price | $6.99 | $6.99 |
| Rating | 4.9 (39 ratings) — better | 4.6 (11 ratings) |
| Positive reviews | 66.7% of reviews | 77.8% of reviews — better |
| Number of ratings | 39 — better | 11 |
| Update frequency | Every 26 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 27 MB | 117 MB |
| Age rating | 4+ | 4+ |
| Developer | BLEASS | Imaginando Lda |
Customer experience
BLEASS Granulizer
GRFX
In-app purchases
BLEASS Granulizer
No in-app purchases
GRFX
No in-app purchases









