ChordMaps2 vs AudioLayer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChordMaps2
This music app allows musicians, songwriters, educators, and students to explore and improvise chord progressions, melody, and bass lines. It utilizes "Musical Maps" for intuitive chord exploration and can function as a MIDI controller for external synth apps.
- Explore chord progressions on Musical Maps
- Improvise melody and bass lines
- Supports major and minor keys
- MIDI controller functionality
- Demonstrate music theory concepts
- Create ear-training exercises
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ChordMaps2 is a music app for iPad which allows musicians, songwriters, music educators, and students to explore and improvise chord progressions, melody lines, and bass lines, in both major and minor keys, most of the time tapping with just one or two fingers. The most powerful feature of ChordMaps2 is that users can explore and play common chord progressions by touching chord locations on "Musical Maps." You can work with ChordMaps2 as a... Songwriter - to explore melody lines, bass lines, and chord progressions when you are away from your guitar or keyboard. Music Educator - to demonstrate principles of music theory, (including major and minor scales, diatonic and secondary chords, common chord progressions like IV-V-I, ii-V-I, I-vi-IV-V, I-V-vi-IV, etc.) You can also create spontaneous ear-training exercises, and explore melodic lines and chord progressions with students in an interactive environment. MIDI Musician - to tap out chord sequences and hear them played by one or more of the synth apps on your iPad, or you can send the MIDI information out through a MIDI interface to a computer running a digital audio workstation (DAW) like GarageBand or Logic Pro. How ChordMaps2 Works... ChordMaps2 is a MIDI controller. It works by being paired with a synthesizer app that generates sound. (Example synth apps include ThumbJam, SampleTank, bs-16i, iM1, and many more.) ChordMaps2 sends the MIDI signal; the synth app responds to the MIDI information and creates the audio. Video demonstrations of ChordMaps2 are found at the website. (Click the Developer Website link or visit Mugglinworks.com/ChordMaps2).
AudioLayer
This app is a powerful mobile multi-sampler for music production, offering advanced features for creating and manipulating complex instruments. It integrates seamlessly with iOS production environments and supports iCloud for easy collaboration and storage.
- Streaming Sample Engine (SSE)
- Hierarchical Layer and Zone editing
- Seamless Instrument Switching (SIS)
- Integrated audio sample recorder
- Auto Sampler for hardware synths
- AUv3 AudioUnit integration
- iCloud storage and collaboration
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AudioLayer satisfies the most sought after gap for contemporary music production on iOS devices. AudioLayer is a full featured open standard audio multi-sampler pushing the boundaries beyond what has been available even in the desktop music production worlds. And all this integrated in all relevant iOS production environments especially the emerging AUv3 AudioUnit standard. - SSE - Streaming Sample Engine - The ultra efficient Streaming Sample Engine SSE is capable of playing hundreds of voices of big multi-sampled instruments even in strictly resource limited applications like using multiple instances of AudioLayer in AudioUnit host environments. Innovative features like Sub Sample Looping for perfect loops even in the audible range extend the range of applications even further. - Multiple storage options - The consequent usage of the open file structure of the Files app makes organising even large sample libraries a breeze. Sample recordings and Instrument designs made with AudioLayer are seamlessly available across all your devices and desktop using either iCloud storage or external SSD. The iCloud option opens up new forms of collaborations with musicians all around the world to share your creations and work together. - Multi Scope Editing - To support the creation of complex multi-sampled instruments AudioLayer allows you to use a hierarchical structure of Layers and Zones each with it’s own sound manipulation parameters. A unique element of AudioLayer is the possibility to decide for each Zone at which Scope level your editing apply: For the all Zones in the Instrument, for the Layer only or individually for this Zone only. This opens a whole new world of creative options for sound mangling. For sound manipulation you can use a full set of Filters, Envelopes and LFOs to shape the pitch, timbre and level of the sound of each Zone. SIS - Seamless Instrument Switching The unique architecture of the Streaming Sample Engine allows for instant loading of even complex instruments and makes this switching from one Instrument to the next without cutting off the sound! And this includes of course also different effect settings - Easy Design Workflow - The built in audio sample recorder let you create Instruments on the fly in seconds. The Music Effect AudioUnit / Audiobus effect plugin of AudioLayer let you record multi-samples semi automatically directly inside your preferred host and instantly create an Instrument with the help of several Auto mapping options available. This includes file name based mapping of key ranges and velocities and automatic pitch detection. For the creatives we’ve also integrated a special “Single Cycle Waveform” detector making the use of this special files a breeze. - Auto Sampler feature for easy creation of Sample Instruments from hardware synthesiser. - Versilian Studio Sample Library ( VCSL/VSCO ) with excellent strings and orchestra samples for free download - Exchange libraries with XinematiX App Integration • Stand-alone App • Sample import for EXS24 and SFZ Format • AUv3 AudioUnit Instrument and Music Effect • Inter App Audio • Audiobus 3 Input/Effect with state saving support. • Audio recorder with share function. • Ableton Link compatible.
Screenshots
Verdict
The clearest difference is in-app purchases: ChordMaps2 at none against AudioLayer's 1. ChordMaps2 also leads on review sentiment (82% vs 56%) and price ($9.99 vs $12.99). AudioLayer's advantage is update cadence (fortnightly vs every 6 months) and rating (4.4 vs 4.1). On ads 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
ChordMaps2 costs $9.99 and AudioLayer $12.99 up front. AudioLayer sells 1 one-off in-app purchase. ChordMaps2 asks for nothing beyond the download.
AudioLayer holds the better App Store score, 4.4 against 4.1. That said, the two scores are not equally well evidenced: AudioLayer has 179 ratings behind it against 26, so its average is the more settled of the two. Written reviews complicate that: 82% of ChordMaps2's written reviews are positive against 56% of AudioLayer's, so the app with the better star average is not the one people write more warmly about.
ChordMaps2 ships an update every 6 months, AudioLayer fortnightly. The most recent releases landed on September 22, 2026 and September 28, 2026 respectively.
| Parameter | ChordMaps2 | AudioLayer |
|---|---|---|
| Price | $9.99 — better | $12.99 |
| Rating | 4.1 (26 ratings) | 4.4 (179 ratings) — better |
| Positive reviews | 82.1% of reviews — better | 55.6% of reviews |
| Number of ratings | 26 | 179 — better |
| Update frequency | Every 6 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 242 MB |
| Age rating | 4+ | 4+ |
| Developer | Malcolm Mugglin | Harry Gohs |
Customer experience
ChordMaps2
AudioLayer
Bugs and requests
ChordMaps2
Not enough reviews yet to summarise bugs or requests.
AudioLayer
Reported bugs
17 issues- App crashes on startup (splash screen)
- Reverb and chorus effects cause sound to disappear
- Pitch resets to -24 after stopping Logic Pro playback
- Layer voice polyphony controls not working properly
- SFZ batch import distributes samples incorrectly across layers
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- EXS24 import fails for complex instruments (pianos, drum kits)
- MIDI source names display as 'Unknown Name'
- Plugin window resizing required to access all controls
- Sample end marker positioning doesn't work in all view sizes
- Soundfont import module shows as missing despite purchase
- App becomes unresponsive when loading complex instruments
- Control Change 11 (Expression) not received
- Autosampler function button missing after update
- Settings not saved properly as AUv3 plugin
- Instrument loading defaults to first instrument in host
- Click/pop noises in sustain loops
- Inter-Audio (IAA) compatibility broken
Requested features
17 requests- Time-stretching/pitch-shifting capability
- Program Change MIDI support
- Undo/Redo functionality
- GigaSampler .gig library support
- Soundfont SF2 import (now paid feature)
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- MIDI learn for real-time parameter control
- Expression (CC11) and other CC support
- Multi-output support for individual zone routing
- Batch import and file management improvements
- Instrument selection screen persistence in MIDI mode
- Bit reduction effect for vintage sampler emulation
- Better local file management and folder organization
- Modulation wheel pitch control
- Transposition features
- Disk streaming for larger libraries
- Macro/customizable GUI support
- Purge unused samples function
In-app purchases
ChordMaps2
No in-app purchases
AudioLayer
- SoundFont Import$3.99
Questions
Is ChordMaps2 free?
Is AudioLayer free?
Which has better reviews, ChordMaps2 or AudioLayer?
Do ChordMaps2 or AudioLayer have ads?
Which is updated more often, ChordMaps2 or AudioLayer?
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