# iMproviser vs Bebop by the Numbers

The clearest difference is review sentiment: Bebop by the Numbers at 100% against iMproviser's 0%. Bebop by the Numbers also leads on rating (5.0 vs 1.5) and update cadence (every 2 weeks vs every 73 months). iMproviser's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume, device support and iOS requirement there is nothing between them.

Both are free to download. Bebop by the Numbers sells 2 one-off in-app purchases. iMproviser asks for nothing beyond the download.

Bebop by the Numbers holds the better App Store score, 5.0 against 1.5. Both are backed by a comparable volume of ratings — 2 and 5 respectively. Written reviews point the same way: 0% of iMproviser's written reviews are positive against 100% of Bebop by the Numbers's.

iMproviser ships an update every 73 months, Bebop by the Numbers every 2 weeks. The most recent releases landed on June 5, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | iMproviser | Bebop by the Numbers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (2 ratings)](https://appshunter.io/ios/app/improviser/id414087216/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/bebop-by-the-numbers/id6474764883/reviews)** |
| Number of ratings | 2 | **5** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 73 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 13 MB | 67 MB |
| Requires iOS | **13.0** | 14.0.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Formatics](https://appshunter.io/developer/398621806) | [Daniel Kolke](https://appshunter.io/developer/1722486877) |

## What reviewers say

### iMproviser

[App page](https://appshunter.io/ios/app/improviser/id414087216)

Learn to improvise jazz and blues music with practical exercises. This app offers 6 pages of exercises in all 12 keys, suitable for all wind instruments.

**Highlights:** Jazz and blues improvisation, Practical exercises, 12 keys, All wind instruments, Beginner-friendly

**Features:** macOS Compatibility

**In-app purchases:** none


### Bebop by the Numbers

[App page](https://appshunter.io/ios/app/bebop-by-the-numbers/id6474764883)

Learn to create and improvise Bebop melodies and lines over chord progressions. This cumulative method uses building blocks to develop your skills from simple to complex, offering a sustainable path for musical growth. Includes a daily riff with play-along videos.

**Highlights:** Cumulative method for Bebop ideas, Create and improvise in real time, Build skills from simple to complex, Sustainable method for long-term growth, Daily riff with play-along videos, Exercises and games

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bebop by the Numbers | $20.00 | one-time |
| Buy Course | $25.00 | one-time |


## Frequently asked questions

### Is iMproviser free?

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

### Is Bebop by the Numbers free?

Bebop by the Numbers is free to download, with in-app purchases available.

### Which has better reviews, iMproviser or Bebop by the Numbers?

Bebop by the Numbers is rated higher. iMproviser averages 1.5 out of 5 from 2 ratings, while Bebop by the Numbers averages 5.0 from 5 ratings.

### Do iMproviser or Bebop by the Numbers have ads?

Bebop by the Numbers shows ads; iMproviser does not.

### Which is updated more often, iMproviser or Bebop by the Numbers?

iMproviser ships an update every 73 months, and Bebop by the Numbers every 2 weeks. Most recently, iMproviser was updated on June 5, 2026 and Bebop by the Numbers on September 3, 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.*