Comparison

Mapping Tonal Harmony Pro vs Oolimo Guitar Chords

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

Oolimo Guitar Chords

This app provides an interactive way to learn, understand, and master guitar chords. It offers a structured approach to chord theory, helping users visualize and hear harmonic relationships. Features include a chord finder, analyzer, progression explorer, interactive lessons, and quizzes.

Highlights
  • Interactive chord finder and analyzer
  • Chord progression visualization
  • 22 interactive theory lessons
  • Chord construction and ear training quizzes
  • Interactive fretboard and diagrams
  • Chord playback and note display
Features
Read full description

Oolimo is the interactive foundational reference for guitar chords – a learning and lookup app that explains chords clearly, supports songwriting, and inspires fresh sounds on the guitar. – No subscription! Pay once – use it forever and receive updates. – Current languages (included in every app): English, German, Spanish, French, Italian, Dutch, Danish, Norwegian, Swedish, Portuguese (Brazil), Portuguese (Portugal), Chinese (Simplified), Indonesian, Japanese. Learn guitar chords and chord symbols as used by professional guitarists in modern pop, rock and jazz – including complex jazz chords. Let the Chord Analyzer name chords you've discovered on the guitar and show you how they are built. – Chord Finder, Chord Analyzer and music theory in one app. – Learn and understand chords – Read chord symbols confidently (including complex jazz chords) – Analyze chords instead of guessing – Apply music theory directly on the fretboard Oolimo clears up nonsense chords and incorrectly or confusingly written chord symbols, and explains with clear logic how chord symbols (chord names) are written unambiguously and how to correctly interpret different notations. When musicians from all over the world play together, it's important that everyone speaks and understands the same language – and that the language is easy and clearly understandable. — The Modules — Chord Finder Find musically meaningful chords instead of random guitar shapes. All fingerings come from a hand-curated database of playable voicings and are intelligently transposed by an algorithm. Every chord adapts automatically to the selected key. With a single tap you can send shapes directly to the Analyzer and explore inversions and different interpretations of the chord. Chord Analyzer Enter any guitar chord into the virtual fretboard and instantly get the correct chord name, including inversions. No "unknown chord" messages thanks to the intelligent recognition algorithm – even for complex chords, slash chords and inversions. The Chord Analyzer also supports alternative tunings (open tunings). Chord Progressions Explore and compare the most important chord progressions with an innovative matrix that visualizes harmonic functions and relationships. Practice the most important progressions systematically in different keys and variations – and master them so well that you can rattle them off in rehearsal to the amazement of your bandmates. Theory Lessons 22 interactive lessons with smart visualizations explain intervals, chord construction, voicings, slash chords, diatonic harmony and all major chord types – from first explorations on the fretboard, through major, minor and dominant 7th to altered, sus, add, 6th and diminished chords. Quizzes Use the quizzes to test and internalize your knowledge through play. The quiz tasks cover many topics: chord construction, intervals, harmonic context, chord types, voicings, tensions and much more.

Screenshots

Mapping Tonal Harmony Pro4 screens
Oolimo Guitar Chords4 screens

Verdict

The call

The clearest difference is rating: Oolimo Guitar Chords at 4.8 against Mapping Tonal Harmony Pro's 4.1. Oolimo Guitar Chords also leads on review sentiment (92% vs 49%) and price ($5.99 vs $14.99). Mapping Tonal Harmony Pro's advantage is update cadence (every 10 days vs every 6 weeks). On ratings volume, 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 Oolimo Guitar Chords $5.99 up front. Mapping Tonal Harmony Pro sells 5 one-off in-app purchases. Oolimo Guitar Chords asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Oolimo Guitar Chords holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 65 and 102 respectively. Written reviews point the same way: 49% of Mapping Tonal Harmony Pro's written reviews are positive against 92% of Oolimo Guitar Chords's.

UpkeepUpdate frequency

Mapping Tonal Harmony Pro ships an update every 10 days, Oolimo Guitar Chords every 6 weeks. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

Scorecard6 real differences · 4 level
Mapping Tonal Harmony Pro versus Oolimo Guitar Chords: the parameters behind the verdict, then further details
ParameterMapping Tonal Harmony ProOolimo Guitar Chords
Price$14.99$5.99 — better
Rating4.1 (65 ratings)4.8 (102 ratings) — better
Positive reviews49.4% of reviews91.6% of reviews — better
Number of ratings65102 — better
Update frequencyEvery 10 days — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.016
Further details — not scored
Size280 MB15 MB
Age rating4+9+
DeveloperMDECKS MUSIC, LLCOliver Mochmann

Customer experience

Mapping Tonal Harmony Pro

All ratings65 ratings
Positive73.8%
Neutral7.7%
Negative18.5%
Written reviews237 reviews
Positive49.4%
Neutral6.8%
Negative43.9%

Oolimo Guitar Chords

All ratings102 ratings
Positive95.1%
Neutral2.9%
Negative2.0%
Written reviews119 reviews
Positive91.6%
Neutral7.6%
Negative0.8%

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

Oolimo Guitar Chords

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

Oolimo Guitar Chords

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 Oolimo Guitar Chords free?
Oolimo Guitar Chords costs $5.99, with no in-app purchases.
Which has better reviews, Mapping Tonal Harmony Pro or Oolimo Guitar Chords?
Oolimo Guitar Chords is rated higher. Mapping Tonal Harmony Pro averages 4.1 out of 5 from 65 ratings, while Oolimo Guitar Chords averages 4.8 from 102 ratings.
Do Mapping Tonal Harmony Pro or Oolimo Guitar Chords have ads?
Neither Mapping Tonal Harmony Pro nor Oolimo Guitar Chords shows ads.
Which is updated more often, Mapping Tonal Harmony Pro or Oolimo Guitar Chords?
Mapping Tonal Harmony Pro ships an update every 10 days, and Oolimo Guitar Chords every 6 weeks. Most recently, Mapping Tonal Harmony Pro was updated on October 19, 2026 and Oolimo Guitar Chords on October 18, 2026.

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