Comparison

MIDI FX vs Will Copps' Liminal @ Catholic

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
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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

Will Copps' Liminal @ Catholic

Experience a unique musical composition that integrates with the physical environment of Catholic University. This app uses GPS to dynamically change the audio as you move across campus, transforming your perception of the space.

Highlights
  • GPS-integrated music playback
  • Dynamic sound changes with movement
  • Spatial audio/video exhibition companion
  • Campus-wide immersive experience
  • Reframes interaction with physical spaces
Features
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Transitions—from stillness to movement, and from digital to physical realms—make up a large and underappreciated part of our daily lives. Will Copps explores and expands on these moments in his new spatial composition, Liminal, leveraging GPS to weave music into the rich historical environment and topography of Catholic University. Walk the campus and hear sounds change in line with your movement, framing the campus in a whole new way. The app pairs with an immersive, spatial audio/video exhibition in the Salve Regina Gallery, extending the reach of the gallery and its art across the entire campus. Students, faculty, and visitors can download the app and experience a gallery without walls that reframes our daily interaction with the spaces and their expression of beauty, interest, and contemplation. The app is released via TCW. More information can be found via Catholic University at: https://art.catholic.edu/news/exhibitions/index.html; technical help can be found on willcopps.com and TCWav.com.

Screenshots

MIDI FX2 screens
Will Copps' Liminal @ Catholic3 screens

Verdict

The call

The clearest difference is in-app purchases: Will Copps' Liminal @ Catholic at none against MIDI FX's 1. MIDI FX's advantage is update cadence (every 9 days vs every 38 months) and ratings volume (5 vs 1). On price, rating, ads and monetization model 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. Will Copps' Liminal @ Catholic asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for MIDI FX against 5.0 for Will Copps' Liminal @ Catholic. That said, the two scores are not equally well evidenced: MIDI FX has 5 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

MIDI FX ships an update every 9 days, Will Copps' Liminal @ Catholic every 38 months. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 6 level
MIDI FX versus Will Copps' Liminal @ Catholic: the parameters behind the verdict, then further details
ParameterMIDI FXWill Copps' Liminal @ Catholic
PriceFreeFree
Rating5.0 (5 ratings)5.0 (1 ratings)
Number of ratings5 — better1
Update frequencyEvery 9 days — betterEvery 38 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS14.7 — better15.0
Further details — not scored
Size263 MB89 MB
Age rating4+4+
DeveloperJorge ArroyoTCW

Customer experience

MIDI FX

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

Will Copps' Liminal @ Catholic

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

MIDI FX

One-time1
  • Unlock app$9.99
None

Will Copps' Liminal @ Catholic

No in-app purchases

Questions

Is MIDI FX free?
MIDI FX is free to download, with in-app purchases available.
Is Will Copps' Liminal @ Catholic free?
Will Copps' Liminal @ Catholic is free to download, with no in-app purchases.
Which has better reviews, MIDI FX or Will Copps' Liminal @ Catholic?
MIDI FX and Will Copps' Liminal @ Catholic are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.
Do MIDI FX or Will Copps' Liminal @ Catholic have ads?
Neither MIDI FX nor Will Copps' Liminal @ Catholic shows ads.
Which is updated more often, MIDI FX or Will Copps' Liminal @ Catholic?
MIDI FX ships an update every 9 days, and Will Copps' Liminal @ Catholic every 38 months. Most recently, MIDI FX was updated on October 23, 2026 and Will Copps' Liminal @ Catholic on October 15, 2026.

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