Comparison

MIDI Layers vs OkChorale

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

Head to head
About

MIDI Layers

This app allows musicians to intelligently route MIDI data, enabling complex keyboard splits, layered instruments, and seamless scene switching for live performances. Create up to 12 scenes with numerous layers, each with customizable MIDI output and note remapping.

Highlights
  • Up to 127 layers per scene
  • 12 scenes per preset
  • 16 output ports and channels
  • Remote scene switching
  • Layer mutes and mute groups
  • Scales per scene
  • Per-layer velocity curves
Features
Read full description

MIDI Layers is an AUv3 MIDI plugin designed to allow sophisticated routing of MIDI data in hosts such as AUM or Cubasis. Have you ever wanted to play multiple instruments from a single master keyboard during a live performance? Would you like to be able to set up keyboard splits, crossfade layers or create an ensemble of layered instruments? If you answered yes to either of those questions, then MIDI Layers may be your solution. Layers allows you to create up to 12 scenes, each with up to 127 layers, spanning your entire master keyboard. These scenes allow you to seamlessly switch between various layer mappings at any time during a performance. Each layer controls the MIDI output, which can be routed to one of MIDI Layers 16 output ports and 16 channels. So if you have 5 layers in your scene, each layer is able to divert MIDI key input to 5 destinations, allowing you to control 5 instruments from one master keyboard. Layers can overlap, meaning you can create an ensemble of two or more instruments. Layers can also have cross fades so that you can fade from one instrument to another across a specified range. You can also control the velocity curves of a layer if you need to emphasize note velocity at a certain set of octaves. Each layer can also be remapped so that you can target a different key range on the destination instrument. This allows you to have several single note layers that can target specific drum machine samples for instance. You can assign a song per scene, or have several scenes containing parts of the same song. Switching scenes is simple, using the on screen scene buttons, via AU parameters, or you can even add a special control layer to a scene which can then be triggered via your master keyboard. It is also possible to assign a Program Changes to a layer. When you switch scenes, each layer can fire off its own program change to your destination instruments. Each scene can be assigned its own scale, which enables you to play using only the white notes so say goodbye to wrong notes. Finally, layers can be assigned to mute groups, allowing you to quickly turn on/off groups of layers with a single key or button press. Features: ○ Up to 127 layers per scene. ○ 12 scenes per preset. ○ Supports 16 output ports and 16 channels. ○ Remote switching of scenes using MIDI or AU. ○ Supports layer mutes and mute groups. ○ Named scenes with large scene selection mode. ○ Supports scales per scene which can be played using white notes only. ○ Each layer can define a Program Change that is sent when scenes are switched. ○ Supports per layer velocity curve. ○ Supports per layer remapping of notes on output. ○ Each layer can have a cross fade settings assigned. ○ Definable Master Keyboard size (6, 7, 8 or 10 octave). ○ Scene and mute control layers. ○ Provides default custom layouts. Please Note: This product will not work with GarageBand since it cannot load AUv3 MIDI plugins.

About

OkChorale

This audio effect plugin offers stereo chorus and vibrato inspired by analog stomp boxes. It allows for modulation of delay times to create classic sound effects, with adjustable rate and depth. It can be used standalone or within compatible music production applications.

Highlights
  • Stereo chorus and vibrato effect
  • Analog stomp box inspiration
  • Adjustable modulation rate (0.1-10.0 Hz)
  • Adjustable modulation depth
  • Chorus and Vibrato modes
  • AUv3 compatible
Read full description

OkChorale Chorus / Vibrato Plugin (AUv3) OkChorale is an audio effect plugin that can run standalone, or in any AU compatible host application such as Logic or GarageBand. Overview OkChorale is a stereo chorus / vibrato effect inspired by classic analog stomp boxes. While not intended to be a model or replica of a specific unit, the processing and features embrace a bygone era of simpler times! Both chorus and vibrato effects are achieved by modulating the time of a delayed version of the dry signal. Typically, these delay times are very short, between 5-20ms. Parameters Active - Toggles the effect On or Off. Rate - Varies the modulation LFO frequency between 0.1-10.0 Hz. Typically, chorus sounds better with slow modulation, and vibrato is more noticeable and natural with higher rates. Depth - Sets the amount of delay modulation, as a percentage of the maximum modulation delay time. Mode - Toggles between Chorus and Vibrato mode. In Vibrato mode, the base delay time is very short and no dry signal is present in the plugin's output. In Chorus mode, the delay time is longer, and the dry signal is mixed with the delayed version. When used in stereo, the left and right channel's modulation is out of phase to create a wide stereo effect. The modulation wave shape is also different, depending on the mode. In Vibrato mode, a sine wave is used. In Chorus mode, a slightly rounded, and more "analog-like" triangle wave is used. Despite the basic design and lack of features, we hope you agree that OkChorale can still sound pretty OK! If the name sounds familiar, OkChorale is a version of the OK CHORALE module developed for Voltage Modular by Waverley Instruments. For more info and support please visit: www.waverley-instruments.com/robjackson

Screenshots

MIDI Layers4 screens
OkChorale1 screens

Verdict

The call

The clearest difference is price: OkChorale at $1.99 against MIDI Layers's $12.99. OkChorale also leads on review sentiment (100% vs 57%) and update cadence (every 3 days vs fortnightly). On ratings volume, ads, in-app purchases 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

MIDI Layers costs $12.99 and OkChorale $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

OkChorale holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 13 and 5 respectively. Written reviews point the same way: 57% of MIDI Layers's written reviews are positive against 100% of OkChorale's.

UpkeepUpdate frequency

MIDI Layers ships an update fortnightly, OkChorale every 3 days. The most recent releases landed on September 21, 2026 and August 25, 2026 respectively.

Scorecard4 real differences · 6 level
MIDI Layers versus OkChorale: the parameters behind the verdict, then further details
ParameterMIDI LayersOkChorale
Price$12.99$1.99 — better
Rating4.7 (13 ratings)5.0 (5 ratings) — better
Positive reviews57.1% of reviews100.0% of reviews — better
Number of ratings13 — better5
Update frequencyFortnightlyEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS1312.0 — better
Further details — not scored
Size15 MB12 MB
Age rating4+4+
Developer4Pockets.comRob Jackson

Customer experience

MIDI Layers

All ratings13 ratings
Positive92.3%
Neutral0.0%
Negative7.7%
Written reviews7 reviews
Positive57.1%
Neutral14.3%
Negative28.6%

OkChorale

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

MIDI Layers

No in-app purchases

None

OkChorale

No in-app purchases

Questions

Is MIDI Layers free?
MIDI Layers costs $12.99, with no in-app purchases.
Is OkChorale free?
OkChorale costs $1.99, with no in-app purchases.
Which has better reviews, MIDI Layers or OkChorale?
OkChorale is rated higher. MIDI Layers averages 4.7 out of 5 from 13 ratings, while OkChorale averages 5.0 from 5 ratings.
Do MIDI Layers or OkChorale have ads?
Neither MIDI Layers nor OkChorale shows ads.
Which is updated more often, MIDI Layers or OkChorale?
MIDI Layers ships an update fortnightly, and OkChorale every 3 days. Most recently, MIDI Layers was updated on September 21, 2026 and OkChorale on August 25, 2026.

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