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.
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.
- MIDI signal processing
- Harmonize and Transpose
- Sequencer for synths
- Delay and Looper
- Filter notes by velocity
- Internal instruments
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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!
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.
- GPS-integrated music playback
- Dynamic sound changes with movement
- Spatial audio/video exhibition companion
- Campus-wide immersive experience
- Reframes interaction with physical spaces
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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
Verdict
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
Both are free to download. MIDI FX sells 1 one-off in-app purchase. Will Copps' Liminal @ Catholic asks for nothing beyond the download.
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.
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.
| Parameter | MIDI FX | Will Copps' Liminal @ Catholic |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) | 5.0 (1 ratings) |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 9 days — better | Every 38 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 14.7 — better | 15.0 |
| Further details — not scored | ||
| Size | 263 MB | 89 MB |
| Age rating | 4+ | 4+ |
| Developer | Jorge Arroyo | TCW |
Customer experience
MIDI FX
Will Copps' Liminal @ Catholic
In-app purchases
MIDI FX
- Unlock app$9.99
Will Copps' Liminal @ Catholic
No in-app purchases
Questions
Is MIDI FX free?
Is Will Copps' Liminal @ Catholic free?
Which has better reviews, MIDI FX or Will Copps' Liminal @ Catholic?
Do MIDI FX or Will Copps' Liminal @ Catholic have ads?
Which is updated more often, MIDI FX or Will Copps' Liminal @ Catholic?
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