Comparison

mTonal vs ChronoChord

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

Head to head
About

mTonal

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mTonal is an expressive 24-tone keyboard synth that can be used to smoothly glide across the frequency spectrum, something which is not possible with a regular MIDI keyboard controller. It can send MIDI information to digital audio workstations (DAWs) that support MIDI Polyphonic Expression (MPE), making this app extremely versatile for recording and processing microtonal MIDI data. Record audio files using the synth presets of the app and share them across other apps, email, or social media. BASICS Explore the world of quarter-tone music using this 24-tone keyboard. Blue keys between the white and black keys mark the quarter-tones. Switch between octaves using the octave controls on the upper-right corner of the keyboard. Choose between three keyboard layouts: one octave, two octaves, and seven octaves. The seven-octave layout gives you a wide range of tonal possibilities without taking the size of a grand piano. Use the warning button to clear any unreleased touches in the synth. MIDI FUNCTIONALITY Send MIDI information to various DAWs and software synthesizers that support MPE (MIDI Polyphonic Expression) like Logic Pro, Cubase, and Max/MSP. You have the option of using a wired, Wi-Fi, or Bluetooth MIDI connection, and you can change the connection anytime using the settings button on the upper-left corner of the keyboard. FEATURES Turn on gliding to smoothly transition between two notes and create a microtonal soundscape. Use the cents button to display the note's cents value for precise control over the pitch. Familiarize yourself with the keyboard’s layout using the notes button, which displays the note names on top of the keyboard. For more expressiveness in playing, activate the velocity feature to control note velocity based on the touch size. Hold notes for an extended period of time even after they have been released using the pedal. EFFECTS Apply delay and reverb to customize the sound. These effects only apply to the app's synth presets and will not be sent through MIDI out. RECORD, PLAY, SHARE Record and save your favorite tunes to the iPad. The files are saved in .m4a format. Once recorded, the audio files can be played back in the app. The files can be shared through email, social media, or between other apps. You can also organize your audio files and delete unwanted ones from the iPad to free up space.

About

ChronoChord

Features
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The Complete Harmony and Rhythm Companion for Your Pocket. Practice effectively and explore music theory wherever you go. ChronoChord combines a high-precision metronome and a professional tuner with advanced harmonic visualization tools like the Circle of Fifths and Tonnetz, all in one elegant interface optimized for iPhone and iPad. Whether you're warming up backstage, practicing at home, or studying complex harmony, ChronoChord provides the professional tools you need in a single, beautiful app. Key Features: - Professional Metronome: High-precision engine with visual beat indicators. Customize your practice with high-quality sounds, accents, and subdivisions. - Precision Tuner: A rock-solid, responsive tuner with a seismograph-style visualization for perfect pitch every time. - Interactive Circle of Fifths: Explore harmonic relationships, identify scales, and master key signatures with a stunning visual tool. - Tonnetz View: Visualize the relationship between chords and notes in a geometric space, perfect for understanding complex transformations and patterns. - Guitar Chords & Triads: Browse an exhaustive database of guitar chords and master triad inversions across the entire fretboard. - Scales & Modes: Learn and visualize any scale or mode. See notes and degrees perfectly laid out on the interactive fretboard. - Fretboard Reference: Explore the guitar neck with Notes and Degrees. An essential tool for guitarists of all levels. - Premium Design: Features a lush, glass-morphism inspired UI. Fully optimized for iPad, including multitasking support. - Private & Secure: No accounts, no tracking, no internet required. Your practice data stays on your device. Unlock the full power of your musical companion with a single lifetime In-App Purchase: - Advanced Metronome: Access every time signature, an extended tempo range (40-204 BPM), and full sound configuration. - Pro Theory Suite: Unlock all notes and major scale modes in the Circle of Fifths, plus all transformation paths in the Tonnetz view. - Complete Reference: Gain full access to every note, chord, triad, and mode across the entire app. - Lifetime Access: One-time purchase to unlock all current and future Pro features. Forever. Download ChronoChord and master the beat and the harmony, wherever you are. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://metronomo-ios.s3.eu-south-1.amazonaws.com/privacy-policy.html

Screenshots

ChronoChord4 screens

Verdict

The call

The clearest difference is price: ChronoChord at Free against mTonal's $4.99. ChronoChord also leads on update cadence (every 5 days vs fortnightly). mTonal's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 17.6). On ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

ChronoChord is free to download; mTonal costs $4.99 up front. ChronoChord sells 1 one-off in-app purchase. mTonal asks for nothing beyond the download.

UpkeepUpdate frequency

mTonal ships an update fortnightly, ChronoChord every 5 days. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

Scorecard4 real differences Β· 2 level
mTonal versus ChronoChord: the parameters behind the verdict, then further details
ParametermTonalChronoChord
Price$4.99Free β€” better
Update frequencyFortnightlyEvery 5 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPadiPhone, iPad β€” better
Requires iOS13.0 β€” better17.6
Further details β€” not scored
Size7 MB15 MB
Age rating4+4+
DeveloperSkeflectGIUSEPPE CARLONE

In-app purchases

None

mTonal

No in-app purchases

1 purchases

ChronoChord

One-time1
  • Unlock All Features$5.99

Questions

Is mTonal free?
mTonal costs $4.99, with no in-app purchases.
Is ChronoChord free?
ChronoChord is free to download, with in-app purchases available.
Do mTonal or ChronoChord have ads?
Neither mTonal nor ChronoChord shows ads.
Which is updated more often, mTonal or ChronoChord?
mTonal ships an update fortnightly, and ChronoChord every 5 days. Most recently, mTonal was updated on October 26, 2026 and ChronoChord on October 28, 2026.

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