iHarmony vs Electro Clash
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iHarmony
This app provides musicians with instant access to a comprehensive music theory reference. It includes scales, chords, harmonizations, and notes with audio playback and support for multiple notation systems. It's designed for songwriting, studying, and quick reference.
- 1500+ scales, chords, and harmonizations
- Chord harmonizations for every scale
- Audio playback for every entry
- Four notation systems (English, Italian, German, French)
- Full-text search
- Offline functionality
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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.
Electro Clash
Explore a curated selection of 100 electronic music albums over 100 days. This app enhances your music discovery by providing daily recommendations. Requires an Apple Music subscription to use.
- Discover 100 curated albums
- 100-day discovery period
- Daily electronic music recommendations
- Requires Apple Music subscription
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Discover up to 100 curated electronic albums over a 100 day period. Requires an Apple Music Subscription.
Screenshots
Verdict
The clearest difference is in-app purchases: iHarmony at none against Electro Clash's 4. iHarmony also leads on ratings volume (12 vs 1). Electro Clash's advantage is rating (5.0 vs 4.8). On price, update cadence, ads 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
iHarmony costs $0.99 and Electro Clash $0.99 up front. Electro Clash sells 4 one-off in-app purchases. iHarmony asks for nothing beyond the download.
Electro Clash holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: iHarmony has 12 ratings behind it against 1, so its average is the more settled of the two.
iHarmony ships an update every 5 weeks, Electro Clash every 3 weeks. The most recent releases landed on September 25, 2026 and September 17, 2026 respectively.
| Parameter | iHarmony | Electro Clash |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | 4.8 (12 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 77.3% of reviews | — |
| Number of ratings | 12 — better | 1 |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 — better | 26.1 |
| Further details — not scored | ||
| Size | 5 MB | 21 MB |
| Age rating | 4+ | 17+ |
| Developer | Alberto De Bortoli | Pieter Hartzenberg |
Customer experience
iHarmony
Electro Clash
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 moreShow fewer
- 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 moreShow fewer
- 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
Electro Clash
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iHarmony
No in-app purchases
Electro Clash
- White IconFree
- Blue Icon$0.99
- Purple Icon$0.99
Show 1 moreShow fewer
- Green Icon$0.99
