Comparison

GRM studio vs BLEASS Granulizer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GRM studio

This music creation app offers advanced sound manipulation tools for musicians and sound designers. Explore and edit audio files through direct waveform manipulation and multiple playback processes.

Highlights
  • Real-time sound transformation simulation
  • Direct waveform exploration
  • Virtual editing and montage
  • Multiple playback processes
  • Granular synthesis
Features
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GRM studio est une application de création musicale . Elle permet de puissantes transformations sonores par la manipulation directe de représentations audionumériques et l’expérimentation de processus de lectures multiples sur des documents sonores. Cette nouvelle lutherie est mise à disposition grâce au soutien du programme Investissements d’Avenir (PIA-SINÉ). Elle complète la collection de ressources de l’INA-GRM disponible sur Éduthèque « Écouter, voir, comprendre les musiques électroacoustiques et les technologies de création sonore » . Pionnier des musiques concrètes, électroacoustiques, acousmatiques, le Groupe de Recherches Musicales (GRM) développe depuis 1958, des dispositifs créatifs de traitement du son à l’usage des musiciens, des compositeurs, des designers sonores Fonctionnalités : - Simulation temps réel des principales transformations du son . Transpositions, time streching, délais, boucles mobiles, synthèse granulaire,etc. - Toutes ces opérations sont faites uniquement en combinant des opérations de lecture d'un fichier sonore. Lecture simple contrôlée en sens et vitesse, déplacement de boucles mobiles comportant plusieurs curseurs de lecture. - Exploration directe de la forme d'onde à différentes échelles - Édition et Montage virtuel

About

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.

Highlights
  • Granular effect processor
  • Real-time parameter modulation
  • 3D visualizer
  • Randomization controls
  • Tempo syncing
  • Multi-bus audio input
Currently charting
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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!

Screenshots

GRM studio3 screens
BLEASS Granulizer3 screens

Verdict

The call

The clearest difference is price: GRM studio at Free against BLEASS Granulizer's $6.99. GRM studio also leads on review sentiment (100% vs 67%) and update cadence (weekly vs every 26 months). BLEASS Granulizer's advantage is rating (4.9 vs 4.0) and ratings volume (40 vs 1). On ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

GRM studio is free to download; BLEASS Granulizer costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BLEASS Granulizer holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: BLEASS Granulizer has 40 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of GRM studio's written reviews are positive against 67% of BLEASS Granulizer's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

GRM studio ships an update weekly, BLEASS Granulizer every 26 months. The most recent releases landed on October 18, 2026 and October 27, 2026 respectively.

Scorecard8 real differences · 3 level
GRM studio versus BLEASS Granulizer: the parameters behind the verdict, then further details
ParameterGRM studioBLEASS Granulizer
PriceFree — better$6.99
Rating4.0 (1 ratings)4.9 (40 ratings) — better
Positive reviews100.0% of reviews — better66.7% of reviews
Number of ratings140 — better
Update frequencyWeekly — betterEvery 26 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#181 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.3 — better12.0
Further details — not scored
Size35 MB27 MB
Age rating4+4+
DeveloperInstitut National de l'AudiovisuelBLEASS

Customer experience

GRM studio

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

BLEASS Granulizer

All ratings39 ratings
Positive97.4%
Neutral2.6%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

None

GRM studio

No in-app purchases

None

BLEASS Granulizer

No in-app purchases

Questions

Is GRM studio free?
GRM studio is free to download, with no in-app purchases.
Is BLEASS Granulizer free?
BLEASS Granulizer costs $6.99, with no in-app purchases.
Which has better reviews, GRM studio or BLEASS Granulizer?
BLEASS Granulizer is rated higher. GRM studio averages 4.0 out of 5 from 1 ratings, while BLEASS Granulizer averages 4.9 from 40 ratings.
Do GRM studio or BLEASS Granulizer have ads?
Neither GRM studio nor BLEASS Granulizer shows ads.
Which is updated more often, GRM studio or BLEASS Granulizer?
GRM studio ships an update weekly, and BLEASS Granulizer every 26 months. Most recently, GRM studio was updated on October 18, 2026 and BLEASS Granulizer on October 27, 2026.

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