Comparison

Musix Pro vs Hex MIDI

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

Head to head
About

Musix Pro

This app offers an intuitive musical instrument and MIDI controller with an isomorphic layout that arranges notes based on harmonic relationships. It allows users of all skill levels to explore music theory, create melodies easily, and connect with DAWs and synthesizers.

Highlights
  • Isomorphic note arrangement
  • Customizable layouts
  • MIDI and OSC support
  • Audiobus integration
  • Built-in instruments
  • Note labeling and coloring
Features
Currently charting
Read full description

Are you a Pro Musician who wants the best MIDI playing surface or a music newcomer who wants to play melodies more intuitively? Musix Pro packs more notes on the screen than any other app and does so with customizable layouts that bake music theory in. Step up your musical abilities by downloading now. What do people say about Musix Pro? "Anyone who loves music, regardless of skill level, owes it to themselves to experience Musix. Simply exploring the app will open musical doors you never knew existed." - 148apps.com "Musix is a Killer App!" - apps4idevices.com See Musix Pro in action: http://www.youtube.com/shiverware Traditional musical instruments are difficult to learn because notes are arranged based on physical constraints. Musix Pro arranges notes based on their harmonic and musical relationships instead, allowing shapes and patterns to emerge that unlock the mathematical beauty of music. What is Musix Pro: - A professional musical instrument and midi controller - Learn one pattern and instantly play in any key - Explore the harmonic relationships between notes - Play music easily without sacrificing virtousity - An isomorphic layout creator and experimentation app - A melody exploration device Features: - Core / Virtual / Bluetooth Midi, OSC - Supports all MIDI / Audiobus DAWs - Touch Velocity Dynamics - 8 Built-in instruments - AudioBus Support (MIDI sender, Audio sender, State Saving) - Hexagonal and Rectangular layouts - Multiple built-in note arrangements - Custom layout generation and saving - Colourize different notes based on key, scale, and mode - Label notes based on Solfege, or Note name - Multiple note sizes - Multiple color patterns - Note Overlap (play 3-note chords with one finger) - Full iPhone Support Unlike other music apps, Musix Pro provides a wide range of octaves, scales, keys, chords and modes, without limiting your creativity. With multiple built-in instruments and support for OSC and Core/Virtual Midi, most existing synthesizers work beautifully with Musix Pro as a controller. ADDITIONAL INFORMATION: Musix Pro is key agnostic, which means is that once you have learned a musical pattern (like a chord or a scale) that pattern is the same for all keys, even the dreaded A-Flat! Sharps and flats appear in the right place automatically, through the mathematical magic of isomorphism. You can learn to play melodies on a traditional keyboard by playing them on Musix Pro and watching where the sharps and flats go. Songwriters benefit by discovering new melodies and musical relationships. Novices find it easy to learn to play. Experienced musicians are rewarded with an intuitive interface. Keys can be resized to fit your style - start with "epic"-sized keys, and as you get better you can shrink the keys fill the screen with notes. Isomorphic keyboards are found on traditional and new instruments, from concertinas, accordions, and "jammers" to Janko keyboards, harmonic-table devices and more. Musix Pro is the only way to access all isomorphic note arrangements in one powerful customizable application. Musix Pro comes with a set of built-in layouts, each with its own pros and cons. The harmonic table layout allows you to play any major chord by touching three hexes with one finger. Wicki-Hayden makes modulating between pentatonic scales a breeze. Try them all and find one that works for you. Musix Pro allows you to change the colour of the notes in your layout. You can colour the notes white and black like a piano; you can colour the notes of any scale or mode (like D-flat mixolidian) and you can colour notes based on tone centre.

About

Hex MIDI

Features
Read full description

Hex MIDI is an isomorphic MIDI controller and microtonal synthesizer. Instead of the standard piano keyboard, notes are arranged in geometric hexagonal grids - meaning chord shapes, scales, and intervals remain identical across every key. Whether you want to play alternative keyboards like the Wicki-Hayden or Jankó, compose in 19-EDO / 31-EDO microtonal tunings, or control your DAW over MIDI and MPE, Hex MIDI gives you the tools to explore harmony through geometry. Built-In Keyboard Layouts: • Wicki-Hayden – Classic concertina layout with fifths/fourths diagonals and octave columns. • Jankó (Classic & Vertical) – Whole-tone rows with uniform chord fingerings. • Harmonic Table – Euler's Tonnetz grid: major/minor third diagonals with vertical fifths for visual chord building. • Bosanquet-Wilson (Maupin) – Generalized flat-top hex layout built for microtonal navigation. • Harpejji – Whole-tone string layout with semitone vertical progression. • Chromatic Button Accordion – Authentic C-System and B-System (Bayan) layouts. • Fourths & Fifths – String instrument tunings for guitarists, bassists, and violinists. • Major Thirds & Diminished Harmonica – Symmetrical grid layouts. • Custom Layout Editor – Build and save your own hexagonal or rectangular grids. Microtonal & Tuning Engine: • EDO Presets: 19-EDO, 22-EDO (Shruti), 24-EDO (Quarter-tone / Maqam), 31-EDO (Meantone), 41-EDO, 53-EDO, and sub-12 tunings (5-EDO Slendro, 7-EDO, 10-EDO). • Scale Formats: Bohlen-Pierce (13-EDT), Just Intonation, and custom scale generation. • Scala Support: Import standard .scl tuning files and .kbm keyboard mappings. • Visual Color Modes: 5ths spiral color coding, Tonnetz harmonic spectrum, and minimal two-tone palettes. • Note Labels: Display note names with arrow accidentals, Solfège, interval numbers, or exact Hz. MIDI & Expressive Performance: • MIDI I/O: Connect via USB MIDI to hardware synthesizers, external keyboards, and DAWs (Ableton, Logic, Reaper, Bitwig). • MPE & Vibrato: Per-note microtonal pitch-bend routing and touch vibrato. • MTS Support: Real-time MIDI Tuning Standard SysEx transmission for compatible synths. • Touch Control Pads: Integrated dual X/Y pads for assignable pitch, modulation, and CC filters. • Built-In Sound Engine: High-fidelity soundfont player with instant response.

Screenshots

Musix Pro4 screens
Hex MIDI4 screens

Verdict

The call

The clearest difference is price: Hex MIDI at Free against Musix Pro's $9.99. Musix Pro's advantage is in-app purchases (none vs 1) and chart position (#200 vs unranked). On update cadence, ads 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

Hex MIDI is free to download; Musix Pro costs $9.99 up front. Hex MIDI sells 1 one-off in-app purchase. Musix Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Musix Pro ships an update every 6 weeks, Hex MIDI monthly. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 7 level
Musix Pro versus Hex MIDI: the parameters behind the verdict, then further details
ParameterMusix ProHex MIDI
Price$9.99Free — better
Rating4.6 (136 ratings) — better—
Positive reviews77.9% of reviews—
Number of ratings136 — better—
Update frequencyEvery 6 weeksMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
Best chart rank#200 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.2 — better15.0
Further details — not scored
Size16 MB62 MB
Age rating4+4+
DeveloperShiverwareTrung Dung Hoang

In-app purchases

None

Musix Pro

No in-app purchases

1 purchases

Hex MIDI

One-time1
  • Hex MIDI Pro$12.99

Questions

Is Musix Pro free?
Musix Pro costs $9.99, with no in-app purchases.
Is Hex MIDI free?
Hex MIDI is free to download, with in-app purchases available.
Do Musix Pro or Hex MIDI have ads?
Neither Musix Pro nor Hex MIDI shows ads.
Which is updated more often, Musix Pro or Hex MIDI?
Musix Pro ships an update every 6 weeks, and Hex MIDI monthly. Most recently, Musix Pro was updated on October 26, 2026 and Hex MIDI on October 28, 2026.

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