Comparison

HxMIDI Tools vs GRFX

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

Head to head
About

HxMIDI Tools

This software allows owners of CME USB MIDI Host products to update firmware and fully configure their devices. Users can manage routing, mapping, and filtering of MIDI and USB inputs and outputs.

Highlights
  • Firmware updates for CME USB MIDI Hosts
  • Configure routing between MIDI and USB inputs/outputs
  • Filter incoming MIDI events
  • Map incoming MIDI events to others
  • Full product configuration
Read full description

HxMIDI Tools, the software dedicated to CME USB MIDI Hosts products owners. With this software, you will be able to update the firmware of your CME Pro H4MIDI WC, H2MIDI Pro, H12MIDI Pro as well as all other products to come. The software is also used to fully configure your product, you have an access to the routing, mapping and filtering features. With this software you will be able to configure routing to each MIDI and USB input, you can decide to route any input to any output. You can also decide to filter any incoming MIDI event so it is not forwarded to the routed output. The latest version also offers the possibility to map any incoming MIDI event to another one, and much more

About

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.

Highlights
  • 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
Features
Read full description

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

HxMIDI Tools4 screens
GRFX4 screens

Verdict

The call

HxMIDI Tools and GRFX both sit at 4.5 stars, but that hides the real split: 78% of GRFX's written reviews are positive against 0% of HxMIDI Tools's. HxMIDI Tools's advantage is price (Free vs $6.99) and device support (4 vs 2). On rating, ratings volume, update cadence and ads 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

HxMIDI Tools is free to download; GRFX costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for HxMIDI Tools against 4.6 for GRFX. Both are backed by a comparable volume of ratings — 4 and 11 respectively. Written reviews are what separate them: 0% of HxMIDI Tools's written reviews are positive against 78% of GRFX's.

UpkeepUpdate frequency

HxMIDI Tools ships an update every 2 weeks, GRFX monthly. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

Scorecard5 real differences · 5 level
HxMIDI Tools versus GRFX: the parameters behind the verdict, then further details
ParameterHxMIDI ToolsGRFX
PriceFree — better$6.99
Rating4.5 (4 ratings)4.6 (11 ratings) — better
Positive reviews0.0% of reviews77.8% of reviews — better
Number of ratings411 — better
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size6 MB117 MB
Age rating4+4+
DeveloperCME PTE. LTD.Imaginando Lda

Customer experience

HxMIDI Tools

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

GRFX

All ratings11 ratings
Positive90.9%
Neutral0.0%
Negative9.1%
Written reviews9 reviews
Positive77.8%
Neutral0.0%
Negative22.2%

In-app purchases

None

HxMIDI Tools

No in-app purchases

None

GRFX

No in-app purchases

Questions

Is HxMIDI Tools free?
HxMIDI Tools is free to download, with no in-app purchases.
Is GRFX free?
GRFX costs $6.99, with no in-app purchases.
Which has better reviews, HxMIDI Tools or GRFX?
GRFX is rated higher. HxMIDI Tools averages 4.5 out of 5 from 4 ratings, while GRFX averages 4.6 from 11 ratings.
Do HxMIDI Tools or GRFX have ads?
Neither HxMIDI Tools nor GRFX shows ads.
Which is updated more often, HxMIDI Tools or GRFX?
HxMIDI Tools ships an update every 2 weeks, and GRFX monthly. Most recently, HxMIDI Tools was updated on October 4, 2026 and GRFX on October 12, 2026.

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