Comparison

iHarmony vs Jazz ScaleHelper

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

Head to head
About

iHarmony

This music theory reference app provides instant access to scales, chords, and harmonizations with audio playback. It supports multiple notation systems and offline use, making it a comprehensive tool for musicians of all levels.

Highlights
  • 1500+ scales, chords, and harmonizations
  • Chord harmonizations for every scale
  • Audio playback for every entry
  • Four notation systems
  • Full-text search
  • Offline functionality
Features
Read full description

The ultimate music theory reference for every musician. iHarmony gives you instant access to scales, chords, harmonizations, and notes — all in one beautifully designed app. Whether you're preparing for a jam session, writing a song, studying jazz theory, or doing your music homework, iHarmony has the answer. • 1500+ scales, chords, and harmonizations • Chord harmonizations for every scale • Audio playback for every entry — train your ear while you study • Four notation systems: English (C, D, E), Italian (Do, Re, Mi), German (C, D, H), French (Ut, Re, Mi) • Full-text search — find any scale or chord in seconds • Works offline — no internet required Stop searching the web for: "What notes make up a G# diminished 7 chord?" "What are the degrees of the Bebop Dominant scale?" "What's the harmonization of D# Melodic Minor?" iHarmony answers these instantly. Over 1500 entries covering common and exotic scales alike — from the Lydian b7 to the Neapolitan, from Whole Tone to Hungarian Minor. Designed for guitarists, pianists, composers, music students, and professionals. Perfect for functional analysis of jazz standards, songwriting, and music education. Full VoiceOver and accessibility support. Dark mode supported. A must-have for every musician.

About

Jazz ScaleHelper

Improve your musical instrument playing with interactive exercises and real-time feedback. Practice scales, modes, and arpeggios with scoring and performance analysis. Ideal for exam preparation and general skill enhancement.

Highlights
  • Interactive scale and arpeggio practice
  • Real-time performance scoring
  • Multiple practice modes (play any, choose, challenge)
  • Supports Trinity Guildhall and ABRSM syllabuses
  • Wide range of scales, modes, and arpeggios
  • Supports multiple instruments
  • Multi-user support with saved history
Features
Read full description

Choose an exercise: see the notes and hear them played Play the exercise: get a score, see the notes you played and listen to your performance Jazz ScaleHelper is the fast way to improve your playing. With actual feedback based on what you played, Jazz ScaleHelper enables you to concentrate on the aspects of your playing that will help the most. Jazz ScaleHelper has 3 modes: 1. Play any scale: Jazz ScaleHelper determines the exercise you have played and scores your performance. Ideal for impromptu practise sessions. 2. Choose a scale: Choose the exercise you want to play and Jazz ScaleHelper listens and gives you a score. Ideal to improve a specific musical exercise. 3. Challenge me: Jazz ScaleHelper will ask you to play exercises from your challenge list that is based on your chosen syllabus. Jazz ScaleHelper will identify what you need to practise and make sure you get exam ready while having fun on the way. Ideal for practising a range of exercises. Jazz ScaleHelper contains everything you need for the instruments covered by the Jazz syllabuses from Trinity Guildhall and ABRSM examining boards. Jazz ScaleHelper will be there for you every step of the way as you grow as a musician. Jazz ScaleHelper allows you to create your own syllabus from the exercises it supports: major scales; dorian modes; lydian modes; lydian flat 7 modes; mixolydian modes; melodic minor scales; jazz melodic minor scales; harmonic minor scales; pentatonic major scales; pentatonic minor scales; blues scales; diminished scales; chromatic scales; whole-tone scales; phrygian modes; locrian modes; altered modes; aeolian modes; major arpeggios; minor arpeggios; augmented arpeggios; major sevenths; minor sevenths; diminished sevenths; half-diminished sevenths; major/minor sevenths; and minor/major sevenths. All exercises are available starting from every tonic over 1 octave, 1 twelfth, 2 octaves, 2.5 octaves and 3 octaves. There is a range of exercise lists for popular music exams available for download. (Jazz ScaleHelper Lite only supports major scales, blues scales and major arpeggios over 1 octave) Instruments supported include Violin, Viola, Cello, Guitar, Bass Guitar, Clarinet, Flute, Oboe, Saxophone, Bassoon, Recorder, Trumpet, Cornet, Trombone and Horn. A full list is available at www.jazz.ScaleHelper.com along with details of the rich feature set Jazz ScaleHelper has to offer. At less than the price of a single music lesson the guidance that Jazz ScaleHelper provides between your lessons builds on that teaching. You can dispense with the need to review scales by playing them in your lessons and instead reuse the time you gain to learn technique and perfect your pieces. Jazz ScaleHelper supports multiple users, keeping each user's history for each of their instruments. You can save recordings to study later or to show and play to your teacher and friends. You can also email recordings to share them with others. Have fun competing with your friends to see who can get the highest score or who can maintain the highest average.

Screenshots

iHarmony4 screens
Jazz ScaleHelper4 screens

Verdict

The call

The clearest difference is in-app purchases: iHarmony at none against Jazz ScaleHelper's 11. iHarmony also leads on review sentiment (77% vs 50%) and price ($0.99 vs $5.99). Jazz ScaleHelper's advantage is iOS requirement (15.0 vs 26.0). On update cadence, ads, monetization model and device support 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

iHarmony costs $0.99 and Jazz ScaleHelper $5.99 up front. Jazz ScaleHelper sells 11 one-off in-app purchases. iHarmony asks for nothing beyond the download.

UpkeepUpdate frequency

iHarmony ships an update every 5 weeks, Jazz ScaleHelper every 6 weeks. The most recent releases landed on November 1, 2026 and October 14, 2026 respectively.

Scorecard4 real differences · 6 level
iHarmony versus Jazz ScaleHelper: the parameters behind the verdict, then further details
ParameteriHarmonyJazz ScaleHelper
Price$0.99 — better$5.99
Rating4.8 (12 ratings) — better—
Positive reviews77.3% of reviews — better50.0% of reviews
Number of ratings12 — better—
Update frequencyEvery 5 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size13 MB9 MB
Age rating4++4
DeveloperAlberto De BortoliRichard Williams

Customer experience

iHarmony

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews110 reviews
Positive77.3%
Neutral10.9%
Negative11.8%

Jazz ScaleHelper

Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

iHarmony

Reported bugs

19 issues
  • Audio not working on iPhone
  • Database null error
  • Speaker distortion at high volume
  • Playback sounds stilted/uneven
  • Info link works irregularly or doesn't appear
Show 14 more
  • Audio engine buffer fills up quickly
  • Some sounds do not match notes
  • Cb Major scale has wrong pitch
  • App stops working in latest version
  • Dominant 7 chords listed as Major 7
  • Major 7 chords listed as Major 7+
  • Major and Dominant 9 chords incorrect
  • Text is very small in Harmonies section
  • No sound from speakers
  • Audio playback not working after upgrade
  • App is completely empty
  • Some chords have incorrect notation
  • Accidental symbols in wrong place
  • Audio engine buffer fills up quickly

Requested features

40 requests
  • Save favorite scales
  • Add more exotic scales
  • Allow harmonic playback (all notes simultaneously)
  • Provide other theory features (harmonic substitutions, polychords, inversions)
  • Add a search function for chords/scales
Show 35 more
  • Display scales/chords on a staff
  • Add a chord scratch pad for saving/exporting
  • Include minor major seventh chords
  • Add suspended 2 chords and others
  • Option to hear unarpeggiated chords
  • Allow choosing ascending OR descending scale playback
  • Add Roman numeral labelling
  • Interactive circle of fifths
  • Notated examples
  • Include scale formulas
  • Add George Russell Lydian Chromatic Concept scales
  • Zoom functionality or larger font
  • Piano keys indicated
  • Allow controlling playback speed
  • Repeat/loop function for listening
  • Link scales to chords they are used over
  • Show modes associated with chords
  • Search function by typing scale/chord symbols
  • View of chords/scales on a staff
  • North American style chord formatting
  • Better GUI/organizational method
  • Make it a universal app (iPhone/iPad)
  • Separate ascending/descending scale playback
  • Add dominant and altered dominant chords
  • Hear inversions of scales/chord types
  • Nashville # system in harmonies
  • All chords available in notes section
  • Tabs for instruments
  • Easy Beats direction for updates
  • Fix Cb Major scale pitch
  • Show the 8th note/tonic in listening
  • End scales on the ONE
  • Full screen without frames for viewing windows
  • Larger viewing windows
  • Better icon design

Jazz ScaleHelper

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

iHarmony

No in-app purchases

11 purchases

Jazz ScaleHelper

One-time11
  • Saxophone TRINITY G4$0.99
  • Saxophone TRINITY G7$0.99
  • Saxophone ABRSM G1 to G3$0.99
Show 8 more
  • Saxophone ABRSM G4$0.99
  • Saxophone ABRSM G5$0.99
  • Trumpet ABRSM G1 to G3$0.99
  • Trumpet ABRSM G4$0.99
  • Trumpet ABRSM G5$0.99
  • Clarinet TRINITY G1 to G8$2.99
  • Flute TRINITY G1 to G8$2.99
  • Saxophone TRINITY G1 to G8$2.99

Questions

Is iHarmony free?
iHarmony costs $0.99, with no in-app purchases.
Is Jazz ScaleHelper free?
Jazz ScaleHelper costs $5.99, and also offers in-app purchases.
Do iHarmony or Jazz ScaleHelper have ads?
Neither iHarmony nor Jazz ScaleHelper shows ads.
Which is updated more often, iHarmony or Jazz ScaleHelper?
iHarmony ships an update every 5 weeks, and Jazz ScaleHelper every 6 weeks. Most recently, iHarmony was updated on November 1, 2026 and Jazz ScaleHelper on October 14, 2026.

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