Comparison

Mapping Tonal Harmony Pro vs GuitarBloom

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

Head to head
About

Mapping Tonal Harmony Pro

This comprehensive music theory tool helps musicians analyze, reharmonize, and create music. It offers AI-powered harmonic analysis, play-along practice, and score printing. Ideal for students, performers, composers, and teachers.

Highlights
  • AI Harmonic Analysis
  • Reharmonize Songs
  • Play-along Practice
  • Create Harmonic Progressions
  • Print/Export Scores
  • Study Tonal Harmony Concepts
Features
Read full description

Mapping Tonal Harmony Pro is the most INNOVATIVE and EXTENSIVE music tool for musicians out there. This app is invaluable for students of all levels, as well as professional performers, composers, arrangers, and teachers. There are plenty video tutorials and an online manual accessible within the app. The ANALYZER ADD-ON is here! An A.I. tool like no other. The Analyzer can do an entire harmonic analysis of any song/piece from a text file. Finds key centers, pivot chords, secondary dominants, modulations, etc. Import MusicXml files directly from iReal Pro Play-along, Practice Improvisation. Reharmonize any song with the tap of a button. Create 12-keys workouts to practice. Study Target Notes and Upper Structures. Print Scores with Full Harmonic Analysis, or just as the chord changes or Export as MIDI. Play-along in different styles with the option to personalize chord voicings, styles including several piano comping, bass lines and rhythm variations to choose from. The only play-along that uses functions and chord-chordscales pairings to create the accompaniment track. Map templates with different styles from Jazz to Traditional Harmony and Contemporary Harmony. The app comes loaded with jazz workouts, jazz harmony, traditional harmony and jazz standard progressions. Also available on mDecks.com ready to import into the app: 1000+ Jazz Standards Progressions, 1000+ Jazz Standards Reharmonized and The complete Bird Bebop Progressions. All fully analyzed by savvy musicians with tons of experience. Study Tonal Harmony like never before! Learn all functions and cadences in all keys. Write your own music using a map that reveals the secrets of tonality. Use it as a Fake Book on your gig or Practice Improvisation. You can do all this and much more with Mapping Tonal Harmony Pro. You will not find anything like this on the market today. This app is a no-brainer for musicians and music teachers. Some reviews of Mapping Tonal Harmony Pro: "...This app wins our strongest recommendation for an app so far." - Berklee Groove "...an app that blew my mind." NoteTreble "If only Brian Wilson had this music app when he ..." - FeedmyApp "I've been looking for a harmony/chords/tonal app that is functional, deep enough, and with a great interface. Well, I'm not looking any further. This app just blew me away... " - KVR "...an App I’d never teach high school (or college) music theory without!" "An innovation beneficial to students, teachers, and composers alike..." - NoBrainerAppReviews So, what can you do in Mapping Tonal Harmony Pro? • Create Harmonic Progressions and Songs. • Load Chord Progressions, Songs & Jazz Standards. • Study Harmony from the Beginning, to the most Advanced concepts used by Bach, Beethoven, Bill Evans and John Coltrane. • Practice Ear Training and Learn Functions in every Key • Practice Improvisation using it as a Play Along • Study Jazz Standards • Study Classical Pieces • Learn Classical Functional Notation • Learn Jazz Functional Notation and Arrows and Brackets Analysis • Study Modulations: Common Tone, Common Chord & Direct • Learn ALL harmonic functions and cadences in ALL Keys in Major and Minor • Chord-Scales for every function • Learn classical concepts such as the Neapolitan 6, the German augmented six, secondary dominants, etc • Learn jazz concepts such as the SubV7, the related IIm7, the passing half diminished, etc • Create and Print Scores & Workout Sheets in any key, notated as Chord Progression and/or Functionally • Transpose the Map to fit your instrument’s transposition • Balance voices independently and concentrate in the study of Bass-Lines, Inner-Lines and any other combinations • Work in THREE different modes: Browse Mode, Progression Mode, Audio Mode • Create Progressions using Song Structure with Section, Repeats, Intros, First Endings and Exits • Teach your Harmony Class with ease using your favorite audio tracks, performers and composers

About

GuitarBloom

Features
Read full description

GuitarBloom transforms music theory into an interactive visual and audio experience for guitar. Explore scales, modes, and chords with an intuitive interface that makes complex musical relationships easy to understand because everything is being adjusted in front of your eyes. Turn the circles, swipe the fretboard, hear how each chord sounds. iOS drag gestures and UI elements make the App look timelessly elegant. The Interval Bloom shows output in piano key format while giving you the whole arrangement of intervals. Whenever you explore a chord, it is always in the context of the current Key Signature, Mode and Scale Type. SCALES & MODES - Pentatonic, Major, and Harmonic Minor scale types - All 15 keys with transposition and 3 keys with Sharp/Flat switch - Major, Suspended, Blues minor, Blues Major, minor Modes for Pentatonic scale type - Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian modes for Major scale type - Augmented Major, Altered Dorian, Phrygian Dominant, Lydian Sharp 2nd, Super Locrian Double Flat 7, Harmonic minor, Locrian Natural 6 modes for Harmonic minor scale type - Visual color coding that actually represents the quality of each Mode. COMPREHENSIVE CHORD SYSTEM - Roman numeral chord analysis - Complete CAGEeD chord system for guitar - Major, minor chords with all basic shapes - Augmented and diminished inversions - Sus2, Sus4, and extended chords - all chords with 7th modifications - Root position has specific Root chord shapes when possible, like that classic Bm7 and B7 - Interactive fretboard with chord patterns - Karplus-Strong synthesis for audio STANDARD MUSIC NOTATION - Standard piano notation output for all chords - Notes with note names inside and color coded Sharps/Flats to help you learn reading - All 15 Key Signatures for Pentatonic, Major and Harmonic minor scale types. - Real-time chord note display - Interactive Circle of Fifths for when you need that reference INTUITIVE INTERFACE - Drag to rotate between Keys and Modes - Tap Roman numerals to explore chord progressions - Visual feedback with color-coded intervals - Smooth animations and responsive design The Interval Bloom shows why Roman numeral chords work the way they do, how to change Modes, what happens when we transpose Modes, Keys, Chords. How is Blues minor related to Phrygian Dominant? Very easy to see on the Interval Bloom! Whether you're a beginner learning basic chords or an advanced musician exploring complex harmonic relationships, GuitarBloom provides the tools you need to understand and apply music theory practically. Perfect for guitarists, music students, composers, and anyone wanting to deepen their musical understanding.

Screenshots

Mapping Tonal Harmony Pro4 screens
GuitarBloom4 screens

Verdict

The call

The clearest difference is price: GuitarBloom at $3.99 against Mapping Tonal Harmony Pro's $14.99. GuitarBloom also leads on in-app purchases (none vs 5). On update cadence, ads, device support and iOS requirement 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

Mapping Tonal Harmony Pro costs $14.99 and GuitarBloom $3.99 up front. Mapping Tonal Harmony Pro sells 5 one-off in-app purchases. GuitarBloom asks for nothing beyond the download.

UpkeepUpdate frequency

Mapping Tonal Harmony Pro ships an update every 10 days, GuitarBloom every 9 days. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

Scorecard2 real differences · 8 level
Mapping Tonal Harmony Pro versus GuitarBloom: the parameters behind the verdict, then further details
ParameterMapping Tonal Harmony ProGuitarBloom
Price$14.99$3.99 — better
Rating4.1 (65 ratings) — better—
Positive reviews49.4% of reviews—
Number of ratings65 — better—
Update frequencyEvery 10 daysEvery 9 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.6
Further details — not scored
Size280 MB1 MB
Age rating4+4+
DeveloperMDECKS MUSIC, LLCRAIMONDS BLUMS

Bugs and requests

Mapping Tonal Harmony Pro

Reported bugs

20 issues
  • App crashes on play button press
  • Crashes when touching chords on map or staff
  • Voicing keyboard not showing during playback
  • Transposition not working properly
  • Repeat signs non-functional on iOS
Show 15 more
  • Reharmonize feature crashes the app
  • Settings not saving between sessions
  • Chord edits not persisting after saving
  • Audio output distorted or missing
  • Import analysis creates single-line songs
  • Analyzer feature requires repurchase
  • Background activity causing excessive battery drain
  • MIDI out crashes the application
  • Restore purchases not working
  • App freezes on startup or during use
  • Slash chords not functioning properly
  • Chords disappearing in secondary dominant mode
  • Modulation entry causing error messages
  • Audio playback not syncing with visual elements
  • Tiny play button difficult to activate

Requested features

20 requests
  • Simpler, more intuitive user interface redesign
  • In-app written manual and better documentation
  • Pause button in playback controls
  • Easier loop and measure selection functionality
  • Support for more time signatures beyond 4/4 and 3/4
Show 15 more
  • Ability to import XML files from iRealPro
  • Metronome integrated into play-along
  • Drum volume control
  • Virtual MIDI output for inter-app communication
  • Ability to edit and customize jazz standards
  • Export to PDF and image formats
  • Split-screen iPad support
  • Sync between iPhone and iPad via iCloud
  • More rhythm styles and variations
  • Rootless chords information
  • Simple chord input panel like iRealPro
  • Better guitar fretboard and voicings
  • Ukulele chords and custom tunings
  • Melody line addition capability
  • Lead-in bar customization

GuitarBloom

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Mapping Tonal Harmony Pro

One-time5
  • The Analyzer$5.99
  • Target Notes$6.99
  • Upper Structures$6.99
Show 2 more
  • 1000+ Jazz Standards$9.99
  • Bird Bebop Progressions$9.99
None

GuitarBloom

No in-app purchases

Questions

Is Mapping Tonal Harmony Pro free?
Mapping Tonal Harmony Pro costs $14.99, and also offers in-app purchases.
Is GuitarBloom free?
GuitarBloom costs $3.99, with no in-app purchases.
Do Mapping Tonal Harmony Pro or GuitarBloom have ads?
Neither Mapping Tonal Harmony Pro nor GuitarBloom shows ads.
Which is updated more often, Mapping Tonal Harmony Pro or GuitarBloom?
Mapping Tonal Harmony Pro ships an update every 10 days, and GuitarBloom every 9 days. Most recently, Mapping Tonal Harmony Pro was updated on September 21, 2026 and GuitarBloom on September 19, 2026.

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