Comparison

GRM studio vs BLEASS Multiband Compressor

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
Read full description

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 Multiband Compressor

This audio processing tool offers precise control over music dynamics by separating audio into three frequency bands. It features a dual-stage processor for compression or expansion in each band, along with a flexible sidechain system for creative effects and corrective work. Achieve professional loudness and punch in your mixes.

Highlights
  • Multiband processing (3 bands)
  • Dual-stage dynamics processor per band
  • Compressor and expander modes
  • Flexible sidechain system
  • Soft clipping for saturation
  • Dry/wet balance control
Read full description

BLEASS Multiband Compressor is the perfect tool for injecting loudness, power and punch into your mixes, stems and tracks. Whether you are creating music on-the-move on your iPad, producing your masterpiece in the studio, or doing both, BLEASS Multiband Compressor dispenses detailed precision control over your music's dynamics. One of the secret weapons of professional mix and mastering engineers, multiband dynamics processors have various advantages over conventional broadband processors. By separating your audio into three frequency bands, and processing each independently, BLEASS Multiband Compressor ensures that loud passages and transients in one frequency range do not impact on how the other bands behave. This eliminates the "volume pumping" effect often exhibited by broadband compressors, making BLEASS Multiband Compressor the perfect tool for processing drum kits, synths, pianos and – of course – full mixes and stems. The plugin works brilliantly with other sources too, from solo instruments to vocals and spoken voice. Unusually for a multiband processor, each of BLEASS Multiband Compressor's three bands features a dual stage dynamics processor. This consists of an Above stage that senses for and processes signals whose level exceeds the Above threshold, and a Below stage that senses for and processes signals that are quieter than the Below threshold. Additionally, each stage can operate as either a compressor or, by dialing in Ratio values below 1:1, an expander. Altogether this makes for phenomenally versatile control over the volume and loudness of your mixes, stems and parts. Another innovative feature of BLEASS Multiband Compressor is its flexible sidechain system. This allows you to choose which bands will key from the input signal in the normal way, and which will key from a filtered and/or external signal. This is ideal for corrective work such as controlling resonances, sibilances and other unwanted artefacts, but is also a fabulous creative tool, allowing for stylish ducking effects and ultra-deep dynamics control. Rounding things off, the plugin provides comprehensive output level and dry / wet balance control, along with a soft clipping feature that ensures overly-hot signals don't become nasty and harsh, but instead take on a classic valve-like saturation character. BLEASS Multiband Compressor stands out for its great sound, innovative features, versatile dynamics control, and exceptional efficiency. More information on https://www.bleass.com/multibandcompressor

Screenshots

GRM studio3 screens
BLEASS Multiband Compressor3 screens

Verdict

The call

The clearest difference is review sentiment: GRM studio at 100% against BLEASS Multiband Compressor's 33%. GRM studio also leads on price (Free vs $7.99) and update cadence (weekly vs every 8 months). BLEASS Multiband Compressor's advantage is rating (4.7 vs 4.0) and ratings volume (13 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 Multiband Compressor costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BLEASS Multiband Compressor holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: BLEASS Multiband Compressor has 13 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 33% of BLEASS Multiband Compressor'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 Multiband Compressor every 8 months. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

Scorecard7 real differences · 3 level
GRM studio versus BLEASS Multiband Compressor: the parameters behind the verdict, then further details
ParameterGRM studioBLEASS Multiband Compressor
PriceFree — better$7.99
Rating4.0 (1 ratings)4.7 (13 ratings) — better
Positive reviews100.0% of reviews — better33.3% of reviews
Number of ratings113 — better
Update frequencyWeekly — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.3 — better12.0
Further details — not scored
Size35 MB25 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 Multiband Compressor

All ratings13 ratings
Positive92.3%
Neutral0.0%
Negative7.7%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

GRM studio

No in-app purchases

None

BLEASS Multiband Compressor

No in-app purchases

Questions

Is GRM studio free?
GRM studio is free to download, with no in-app purchases.
Is BLEASS Multiband Compressor free?
BLEASS Multiband Compressor costs $7.99, with no in-app purchases.
Which has better reviews, GRM studio or BLEASS Multiband Compressor?
BLEASS Multiband Compressor is rated higher. GRM studio averages 4.0 out of 5 from 1 ratings, while BLEASS Multiband Compressor averages 4.7 from 13 ratings.
Do GRM studio or BLEASS Multiband Compressor have ads?
Neither GRM studio nor BLEASS Multiband Compressor shows ads.
Which is updated more often, GRM studio or BLEASS Multiband Compressor?
GRM studio ships an update weekly, and BLEASS Multiband Compressor every 8 months. Most recently, GRM studio was updated on October 2, 2026 and BLEASS Multiband Compressor on September 30, 2026.

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