Comparison

MIDI FX vs MIDI Pro

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

Head to head
About

MIDI FX

This app allows you to control and process MIDI signals for music creation. It offers features like harmonization, transposition, and sequencing, enabling you to control external or virtual synthesizers and create complex musical arrangements.

Highlights
  • MIDI signal processing
  • Harmonize and Transpose
  • Sequencer for synths
  • Delay and Looper
  • Filter notes by velocity
  • Internal instruments
Features
Read full description

Buy once and get the iOS and Mac apps (with Family Sharing) Control your MIDI signals and process them in any combination of ways: Harmonize, Transpose, Arpeggiate, etc... Or use the Sequencer to play any external or virtual synth. Use a MIDI interface to unlock the power of the app to control multiple synths with one keyboard, play one note and generate chords, basslines, etc... Use the delay/looper or filter notes based on velocity or other parameters to send to different synths/effects. A MIDI workstation in your pocket (or your iPad/Mac) You can also use some internal instruments (drums sampler, piano or synth) if you are away from your MIDI gear, and sequence whole songs inside the app, or use other synth apps as input/output for MIDI FX. Your imagination is the limit!

About

MIDI Pro

Generate practice tracks and composition ideas by mixing percussion and melody. Tailor sequences with custom rhythms, keys, scales, and chord progressions. Save MIDI files for further editing in your DAW.

Highlights
  • Generate MIDI sequences
  • Mix percussion and melody tracks
  • Selectable rhythm, key, scale, and chord progression
  • Adjustable melody tracks
  • Save MIDI files
  • Import to DAW
Features
Read full description

MIDI Pro provides practice opportunities and composition ideas. The app allows you to selectively mix percussion and melody tracks so you can play along with your preferred instrument. The generated MIDI sequences are a starting point for human composers to build upon and add more complex layers of instrumentation. A mixture of determinism and randomness is used to construct MIDI sequences that can be tailored to individual preferences.  The sequences are seeded with the selected rhythm, notes are are added using the selected key, scale and chord progression.   The outcome is a set of tracks that include the percussion plus 4 melody tracks that can be individually adjusted. With the paid version you can save midi files for reuse and or to import them into your favorite DAW.

Screenshots

MIDI FX2 screens
MIDI Pro4 screens

Verdict

The call

The clearest difference is monetization model: MIDI FX at free against MIDI Pro's free with in-app purchases. MIDI FX also leads on update cadence (every 9 days vs every 2 months) and device support (4 vs 2). On price, ads and in-app purchases 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

Both are free to download. MIDI FX sells 1 one-off in-app purchase and MIDI Pro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

MIDI FX ships an update every 9 days, MIDI Pro every 2 months. The most recent releases landed on June 4, 2026 and September 21, 2026 respectively.

Scorecard4 real differences · 6 level
MIDI FX versus MIDI Pro: the parameters behind the verdict, then further details
ParameterMIDI FXMIDI Pro
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews—0.0% of reviews
Number of ratings4 — better—
Update frequencyEvery 9 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS14.7 — better16.0
Further details — not scored
Size263 MB165 MB
Age rating4+4+
DeveloperJorge Arroyorenee zuleta

Customer experience

MIDI FX

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

MIDI Pro

Written reviews5 reviews
Positive0.0%
Neutral40.0%
Negative60.0%

In-app purchases

1 purchases

MIDI FX

One-time1
  • Unlock app$9.99
1 purchases

MIDI Pro

One-time1
  • Full Access Purchase$12.99

Questions

Is MIDI FX free?
MIDI FX is free to download, with in-app purchases available.
Is MIDI Pro free?
MIDI Pro is free to download, with in-app purchases available.
Do MIDI FX or MIDI Pro have ads?
Neither MIDI FX nor MIDI Pro shows ads.
Which is updated more often, MIDI FX or MIDI Pro?
MIDI FX ships an update every 9 days, and MIDI Pro every 2 months. Most recently, MIDI FX was updated on June 4, 2026 and MIDI Pro on September 21, 2026.

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