# iImprov vs Music Theory Rhythms

The clearest difference is rating: Music Theory Rhythms at 5.0 against iImprov's 3.0. Music Theory Rhythms also leads on review sentiment (80% vs 68%). iImprov's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 26.0). On price, ratings volume, update cadence and ads there is nothing between them.

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

Music Theory Rhythms holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 68% of iImprov's written reviews are positive against 80% of Music Theory Rhythms's.

Both ship on a similar rhythm, roughly every 28 months. The most recent releases landed on October 28, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | iImprov | Music Theory Rhythms |
| --- | --- | --- |
| Price | $3.99 | $3.99 |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/iimprov-modal/id434112459/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/music-theory-rhythms/id511632036/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 68.2% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | Every 28 months |
| Monetization | Paid | Paid |
| Size | 8 MB | 40 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jazz Apps Mobile LLC](https://appshunter.io/developer/421582808) | [Patrick Q. Kelly](https://appshunter.io/developer/310068987) |

## What reviewers say

### 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


### Music Theory Rhythms

[App page](https://appshunter.io/ios/app/music-theory-rhythms/id511632036)

Enhance rhythmic and polyrhythmic skills with customizable exercises. Practice hand independence and improve sight-reading with adjustable parameters. Save and print detailed performance results.

**Highlights:** Rhythmic and polyrhythmic skill development, Hand independence exercises, Customizable time signatures and measures, Adjustable note/rest values, Tempo control with accuracy adjustment, Grade Book for saving and printing results

**In-app purchases:** none


## Frequently asked questions

### Is iImprov free?

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

### Is Music Theory Rhythms free?

Music Theory Rhythms costs $3.99, with no in-app purchases.

### Which has better reviews, iImprov or Music Theory Rhythms?

Music Theory Rhythms is rated higher. iImprov averages 3.0 out of 5 from 2 ratings, while Music Theory Rhythms averages 5.0 from 2 ratings.

### Do iImprov or Music Theory Rhythms have ads?

Neither iImprov nor Music Theory Rhythms shows ads.

### Which is updated more often, iImprov or Music Theory Rhythms?

iImprov ships an update every 28 months, and Music Theory Rhythms every 28 months. Most recently, iImprov was updated on October 28, 2026 and Music Theory Rhythms on October 5, 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.*