Comparison

MIDIPlex vs 4Comp

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

Head to head
About

MIDIPlex

Features
Read full description

MotionMIDI transforms your iPhone into a powerful motion-based MIDI controller. Use the built-in motion sensors to control MIDI notes and continuous controller (CC) data through expressive gestures. Connect wirelessly via Bluetooth MIDI or use compatible CoreMIDI connections to perform with your favorite music apps and hardware. Features: • Motion-controlled MIDI performance • Bluetooth MIDI support • MIDI Note Mode • MIDI CC Mode • Real-time gesture control • Adjustable sensitivity and calibration • Presets optimized for popular music apps • Low-latency performance • Clean, performance-focused interface Whether you're creating expressive synthesizer performances, controlling effects, or experimenting with new ways to interact with music, MotionMIDI offers a simple and intuitive way to make movement part of your performance. Compatible with CoreMIDI-enabled apps and hardware that support MIDI input.

About

4Comp

This audio plugin offers four distinct analog-style compressor models (FET, VCA, Optical, Vari-Mu), each with its own sound and interface. It provides advanced features like stereo linking, sidechain filtering, and real-time transfer curve visualization.

Highlights
  • Four analog compressor models (FET, VCA, Optical, Vari-Mu)
  • Unique DSP engine and interface for each model
  • Live transfer curve visualization
  • Stereo link and sidechain high-pass filter
  • Dry/wet mix and auto make-up gain
  • 17 presets included
  • 0-sample latency
Features
Read full description

Four analog-style compressors in one AUv3 plugin: FET, VCA, Optical and Vari-Mu. Each is its own DSP engine with its own sound, and the whole interface — face, knobs, meters — changes to match the one you pick. New in 1.1: tap ? for a quick start and a guide to each model, and watch the live transfer curve on VCA. FET Fast gain reduction from a feedback detector, with an all-buttons mode. Hi-hats, drum buses, spiky guitars. Ice-blue face. VCA Bus glue with program-dependent AUTO release. Tames transients and spikes without grabbing. Crimson face. Optical Smooth, level-dependent release from a modelled photocell — the cell's light memory. Vocals, brass, strings. Electroluminescent-green face. Vari-Mu A ratio that rises with level, plus harmonic colour that thickens thin tracks. Mix bus and mastering. Brass face. Four separate DSP paths Each model is its own compressor engine rather than a preset over one circuit: feedback FET, two-stage VCA, photocell release, rising-ratio tube. Switch faceplates mid-session and the plugin animates to the new model's look. Complement it Stereo link (Linked or Dual Mono), sidechain high-pass, dry/wet mix, input/output and auto make-up gain, a gain-reduction meter styled for each model and 17 presets. Real-time-safe DSP, 0-sample latency by default. Works in GarageBand, AUM, Cubasis, Loopy Pro and other AUv3 hosts on iPhone and iPad.

Screenshots

MIDIPlex3 screens
4Comp4 screens

Verdict

The call

The clearest difference is iOS requirement: 4Comp at 16.0 against MIDIPlex's 18.5. On price, update cadence, 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

MIDIPlex costs $4.99 and 4Comp $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

MIDIPlex ships an update every 10 days, 4Comp weekly. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

Scorecard1 real difference · 8 level
MIDIPlex versus 4Comp: the parameters behind the verdict, then further details
ParameterMIDIPlex4Comp
Price$4.99$4.99
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 10 daysWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.516.0 — better
Further details — not scored
Size29 MB3 MB
Age rating4+4+
DeveloperBRADLEY WAYNE MYERSNATHAN THOMAS MATHIS

In-app purchases

None

MIDIPlex

No in-app purchases

None

4Comp

No in-app purchases

Questions

Is MIDIPlex free?
MIDIPlex costs $4.99, with no in-app purchases.
Is 4Comp free?
4Comp costs $4.99, with no in-app purchases.
Do MIDIPlex or 4Comp have ads?
Neither MIDIPlex nor 4Comp shows ads.
Which is updated more often, MIDIPlex or 4Comp?
MIDIPlex ships an update every 10 days, and 4Comp weekly. Most recently, MIDIPlex was updated on October 6, 2026 and 4Comp on October 16, 2026.

Other comparisons