# Jazz Improviser vs RollTab

The clearest difference is update cadence: RollTab at every 4 days against Jazz Improviser's every 3 weeks. Jazz Improviser's advantage is iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Jazz Improviser ships an update every 3 weeks, RollTab every 4 days. The most recent releases landed on November 10, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Jazz Improviser | RollTab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/rolltab/id6799679058/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | — | Free |
| Size | 64 MB | 185 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Atte Tenkanen](https://appshunter.io/developer/1857262351) | [Simon Edwardsson](https://appshunter.io/developer/293670175) |

## What reviewers say

### Jazz Improviser

[App page](https://appshunter.io/ios/app/jazz-improviser/id6785305246)

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

**In-app purchases:** none


### RollTab

[App page](https://appshunter.io/ios/app/rolltab/id6799679058)

This app transforms your device into an AI-powered piano partner. It listens to your musical phrases and generates real-time continuations using an advanced on-device AI model. You can control various aspects of the AI's output and export your creations as MIDI files.

**Highlights:** AI piano accompaniment, Real-time music generation, MIDI keyboard integration, Adjustable AI parameters, Live piano-roll view, MIDI file export

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

**In-app purchases:** none


## Frequently asked questions

### Is Jazz Improviser free?

Jazz Improviser is free to download, with no in-app purchases.

### Is RollTab free?

RollTab is free to download, with no in-app purchases.

### Do Jazz Improviser or RollTab have ads?

Neither Jazz Improviser nor RollTab shows ads.

### Which is updated more often, Jazz Improviser or RollTab?

Jazz Improviser ships an update every 3 weeks, and RollTab every 4 days. Most recently, Jazz Improviser was updated on November 10, 2026 and RollTab on November 13, 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.*