# iImprov vs AloneQuartet Prepaid

The clearest difference is review sentiment: iImprov at 71% against AloneQuartet Prepaid's 0%. iImprov also leads on rating (3.0 vs 2.0). AloneQuartet Prepaid's advantage is update cadence (every 3 weeks vs every 28 months) and price ($2.99 vs $3.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

iImprov costs $3.99 and AloneQuartet Prepaid $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iImprov holds the better App Store score, 3.0 against 2.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 71% of iImprov's written reviews are positive against 0% of AloneQuartet Prepaid's.

iImprov ships an update every 28 months, AloneQuartet Prepaid every 3 weeks. The most recent releases landed on October 23, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | iImprov | AloneQuartet Prepaid |
| --- | --- | --- |
| Price | $3.99 | **$2.99** |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/iimprov-modal/id434112459/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/alonequartet-prepaid/id1598701032/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | **71.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Size | 8 MB | 3 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jazz Apps Mobile LLC](https://appshunter.io/developer/421582808) | [Naoto Sasaki](https://appshunter.io/developer/514447026) |

## 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


### AloneQuartet Prepaid

[App page](https://appshunter.io/ios/app/alonequartet-prepaid/id1598701032)

Easily create multi-panel videos by recording footage in up to four separate sections. Switch cameras, overlay recordings, and adjust individual audio levels for each panel. Save and import videos from your camera roll with no time limits.

**Highlights:** Record in 4 separate panels, Switch between front/rear cameras, Overlay new recordings, Import/export videos, Individual volume control, Video trimming, Built-in metronome

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

**In-app purchases:** none


## Frequently asked questions

### Is iImprov free?

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

### Is AloneQuartet Prepaid free?

AloneQuartet Prepaid costs $2.99, with no in-app purchases.

### Which has better reviews, iImprov or AloneQuartet Prepaid?

iImprov is rated higher. iImprov averages 3.0 out of 5 from 2 ratings, while AloneQuartet Prepaid averages 2.0 from 1 ratings.

### Do iImprov or AloneQuartet Prepaid have ads?

Neither iImprov nor AloneQuartet Prepaid shows ads.

### Which is updated more often, iImprov or AloneQuartet Prepaid?

iImprov ships an update every 28 months, and AloneQuartet Prepaid every 3 weeks. Most recently, iImprov was updated on October 23, 2026 and AloneQuartet Prepaid on October 17, 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.*