# ThumbJam vs KB

The clearest difference is price: ThumbJam at $6.99 against KB's $14.99. ThumbJam also leads on iOS requirement (8.0 vs 11.0). KB's advantage is chart position (#196 vs unranked). On rating, review sentiment, ratings volume and update cadence there is nothing between them.

ThumbJam costs $6.99 and KB $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for ThumbJam against 4.8 for KB. Both are backed by a comparable volume of ratings — 220 and 270 respectively. Written reviews are what separate them: 85% of ThumbJam's written reviews are positive against 78% of KB's.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | ThumbJam | KB |
| --- | --- | --- |
| Price | **$6.99** | $14.99 |
| Rating | [4.7 (220 ratings)](https://appshunter.io/ios/app/thumbjam/id338977566/reviews) | **[4.8 (270 ratings)](https://appshunter.io/ios/app/kb-1-keyboard-suite/id1437919435/reviews)** |
| Number of ratings | 220 | **270** |
| Positive reviews | **84.6% of reviews** | 78.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Paid | Paid |
| Best chart rank | — | **#196** |
| Size | 215 MB | 38 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sonosaurus LLC](https://appshunter.io/developer/338977569) | [Kai Aras](https://appshunter.io/developer/370820899) |

## What reviewers say

### ThumbJam

[App page](https://appshunter.io/ios/app/thumbjam/id338977566)

This app provides a powerful musical performance experience with over 40 high-quality instrument sounds and hundreds of scales. It allows users of all skill levels to play in any style, offering expressive controls and loop-building capabilities.

**Highlights:** Over 40 high-quality multi-sampled instruments, Hundreds of included scales for any style, Expressive controls using tilt and shake, Loop building and audio export, Extensive MIDI and Audiobus support, Powerful arpeggiator feature

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🎨 Great sound quality
- 🎹 Versatile and expressive instrument
- 🎶 Excellent for music creation and improvisation
- 💻 Powerful MIDI capabilities
- 🎨 Realistic instrument samples

**What reviewers complain about**

- 🔍 Lack of chord mode
- 🔢 Difficulty with precise note selection
- 🔀 Issues with loop recording and syncing
- 🔋 Battery drain concerns
- 🚫 Compatibility problems with newer devices/OS

**Reported bugs**

- Instrument muting when switching apps or opening help
- Inconsistent behavior and freezing after recent updates
- Inability to load/save recorded sets or mixes

**Requested features**

- Add chord mode for easier chord playing
- Improve loop recording and syncing capabilities
- Implement quantization options for tighter timing
- Expand instrument library with more diverse sounds
- Add support for Audio Unit (AUv3) to integrate with DAWs


### KB

[App page](https://appshunter.io/ios/app/kb-1-keyboard-suite/id1437919435)

**Currently charting:** #196 Top Paid · Music (US App Store)

This app offers a suite of expressive virtual keyboards and controllers for creating music. It supports playing multiple instruments simultaneously with advanced features like MIDI Polyphonic Expression, scales, and chords. Explore various layouts and expression controls for a versatile musical experience.

**Highlights:** 8 distinct Keyboard Layouts, MIDI Polyphonic Expression (MPE), Scales and Chords, Powerful Arpeggiator, Standalone and AUv3 MIDI Plugin, Multiple Octaves and Rows per Keyboard

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ThumbJam free?

ThumbJam costs $6.99, with no in-app purchases.

### Is KB free?

KB costs $14.99, with no in-app purchases.

### Which has better reviews, ThumbJam or KB?

KB is rated higher. ThumbJam averages 4.7 out of 5 from 220 ratings, while KB averages 4.8 from 270 ratings.

### Do ThumbJam or KB have ads?

Neither ThumbJam nor KB shows ads.

### Which is updated more often, ThumbJam or KB?

ThumbJam ships an update every 4 months, and KB every 4 months. Most recently, ThumbJam was updated on November 6, 2026 and KB on November 2, 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.*