# iHarmony vs iImprov

The clearest difference is rating: iHarmony at 4.8 against iImprov's 3.0. iHarmony also leads on update cadence (every 5 weeks vs every 28 months) and price ($0.99 vs $3.99). iImprov's advantage is iOS requirement (15.6 vs 26.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

iHarmony costs $0.99 and iImprov $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iHarmony holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: iHarmony has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 77% of iHarmony's written reviews are positive against 68% of iImprov's.

iHarmony ships an update every 5 weeks, iImprov every 28 months. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | iHarmony | iImprov |
| --- | --- | --- |
| Price | **$0.99** | $3.99 |
| Rating | **[4.8 (12 ratings)](https://appshunter.io/ios/app/iharmony/id292413210/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/iimprov-modal/id434112459/reviews) |
| Number of ratings | **12** | 2 |
| Positive reviews | **77.3% of reviews** | 68.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 28 months |
| Monetization | Paid | Paid |
| Size | 13 MB | 8 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alberto De Bortoli](https://appshunter.io/developer/292413213) | [Jazz Apps Mobile LLC](https://appshunter.io/developer/421582808) |

## What reviewers say

### iHarmony

[App page](https://appshunter.io/ios/app/iharmony/id292413210)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Quick and easy to use
- 🎶 Great for learning scales and chords
- 💡 Useful for songwriting and composition
- 🎵 Provides audio playback of scales/chords
- 📚 Comprehensive music theory reference

**What reviewers complain about**

- ❌ Audio issues (no sound, distorted sound)
- 🎛️ Some incorrect notation/spelling
- 🎨 Outdated UI/design
- ❓ Confusing navigation/layout
- 🔊 Sound not matching notes

**Reported bugs**

- 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

**Requested features**

- 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


### iImprov

[App page](https://appshunter.io/ios/app/iimprov-modal/id434112459)

This app helps jazz musicians of all levels master modal improvisation. It offers detailed explanations of theory, scale relationships, and practical exercises with audio and JAM-A-longs in various keys and styles. Tailored for modal tunes, it covers minor modal, 7 sus 4, and Major 7#4 progressions.

**Highlights:** Modal improvisation theory, Scale and chord relation explanations, Pentatonic scale usage, Audio and visual scale examples, Interactive JAM-A-longs, Adjustable tempo and instrument balance, Transposition selection

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is iHarmony free?

iHarmony costs $0.99, with no in-app purchases.

### Is iImprov free?

iImprov costs $3.99, with no in-app purchases.

### Which has better reviews, iHarmony or iImprov?

iHarmony is rated higher. iHarmony averages 4.8 out of 5 from 12 ratings, while iImprov averages 3.0 from 2 ratings.

### Do iHarmony or iImprov have ads?

Neither iHarmony nor iImprov shows ads.

### Which is updated more often, iHarmony or iImprov?

iHarmony ships an update every 5 weeks, and iImprov every 28 months. Most recently, iHarmony was updated on November 1, 2026 and iImprov on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*