# Rassel - Pocket shaker

> iPhone percussion instrument app with realistic sound and handling. (iPhone/iPad app by Klevgrand Produkter AB.)

- Source: https://appshunter.io/ios/app/rassel-pocket-shaker/id1575364575 (this page in markdown: same URL + `.md`)
- Developer: [Klevgrand Produkter AB](https://appshunter.io/developer/1118902192)
- Category: Music, Entertainment
- Price: $0.99
- Rating: 4.70/5 from 78 App Store ratings · 112 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 9 MB
- Languages: American English, Latin American Spanish
- Released: 2021-12-16
- Data updated: 2026-08-29
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/rassel-pocket-shaker/id1575364575/reviews.md

## What is Rassel?

Rassel – Pocket Shaker transforms your iPhone to a shaken percussion instrument. Just pick up the device and shake it. This initial version comes with four different instruments: Egg, Shaker, Tambourine and Bells. Just swipe the screen to change between them.
	Unlike similar apps, Rassel is based on a unique audio rendering engine that accounts for continuous velocity changes based on how the sampled instruments are agitated. The device’s gyroscope is directly mapped to this velocity which makes any movement sound the way a real instrument would. We’ve tried to fine-tune the app to be as lifelike as possible, both in sound and handling response. We think we got pretty close.

Features:

- Instruments: Egg, Shaker, Tambourine and Bells 
- Choose between loose, normal or tight setting
- Loudness boost option

## Key features

- Four percussion instruments: Egg, Shaker, Tambourine, Bells
- Realistic audio rendering engine
- Gyroscope-based velocity control
- Adjustable instrument tightness (loose, normal, tight)
- Loudness boost option

## Recent user reviews (10 of 112)

All indexed reviews: https://appshunter.io/ios/app/rassel-pocket-shaker/id1575364575/reviews.md

### 3/5 — Nice but with no AuV3

*2026-06-27*

Why not, Klevgrand

### 1/5 — Dire

*2026-05-23*

If you’re a musician, don’t bother

### 5/5 — スタンディングデモのおともに最適

*2026-05-19*

常に鳴り物を持って歩くのは嵩張るし、カバンの中で鳴ってしまうとうるさいので、これをスマホに入れていけば、突然スタンディングでコールが始まっても大丈夫！
今日実際に使ってみましたが、大変便利でした。150円なのでおひとつ持ってると安心。

### 5/5 — Amazing Klevgrand!

*2026-05-02*

This is crazy good, would love if we can have some more percussions, thank you! 🙏

Keep it up Klevgrand! ♥️🌈

### 5/5 — iOS 26 zu leise 🤐

*2026-03-16*

Hallo, Lautstärke in der App voll rein und im iPhone auf Anschlag, trotzdem ist die Rassel zu leise. 
Sonst: Idee super, Preis ok, sehr heiter 😄

### 4/5 — More Cowbell

*2026-01-30*

Cool! It works. More volume?

### 5/5 — Quien más vino de Tiktok?

*2026-01-23, version 1.0.3*

Está genial!!!! Ahora agréguenle guiro torpedo shaker y sería aún más una maravilla!!!!

### 4/5 — Ottimo

*2026-01-23, version 1.0.3*

Mi aspettavo qualche suono un po’ più squillante anche , trovo alcuni suoni un po’ troppo chiusi , ma per il resto è pazzesca

### 5/5 — ÇOK İYİ BE

*2025-12-29, version 1.0.3*

Helal size yürüyün

### 3/5 — 3 estrellas

*2025-12-25, version 1.0.3*

Por qué se escucha mi bajito

## Frequently asked questions about Rassel

### What does Rassel - Pocket Shaker do?

Rassel - Pocket Shaker transforms your iPhone into a shaken percussion instrument. It uses the device's gyroscope to create realistic sound and handling responses based on how you agitate the phone. You can choose from four different instruments and adjust their settings.

### What instruments are included in Rassel - Pocket Shaker?

The initial version of Rassel - Pocket Shaker comes with four distinct percussion instruments: Egg, Shaker, Tambourine, and Bells. You can easily swipe the screen to switch between these different sound options.

### How does Rassel - Pocket Shaker create realistic sounds?

The app features a unique audio rendering engine that accounts for continuous velocity changes. The device's gyroscope is directly mapped to this velocity, ensuring that any movement sounds like a real instrument being agitated. The developers have focused on fine-tuning both the sound and handling response to be as lifelike as possible.

### Can I adjust the sound of the instruments?

Yes, you can adjust the sound of the instruments in Rassel - Pocket Shaker. You can choose between loose, normal, or tight settings for each instrument to alter its response. Additionally, there is a loudness boost option available to increase the overall volume.

### Is Rassel - Pocket Shaker free to use?

Yes, Rassel - Pocket Shaker is available for free. The application does not feature in-app purchases or advertisements, allowing for an uninterrupted user experience.

## Version history (last 4 releases)

### 1.0.3 — 2024-12-10

Spanish language added

### 1.0.2 — 2021-12-23

- Background audio added
- Fixed a bug where the about screen could be stuck on devices with small screens

### 1.0.1 — 2021-12-19

Bug fixed that made Rassel crash on some older devices

### 1.0 — 2021-12-17

No release notes.

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| --- | --- | --- | --- |
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## More apps by Klevgrand Produkter AB

- [SquashIt multiband distortion](https://appshunter.io/ios/app/squashit-multiband-distortion/id796836524)
- [R0Verb multi delay-line space machine](https://appshunter.io/ios/app/r0verb-multi-delay-line-space-machine/id937195891)
- [Svep - phaser, flanger, chorus](https://appshunter.io/ios/app/svep-phaser-flanger-chorus/id940079014)
- [Enkl - monophonic synthesizer](https://appshunter.io/ios/app/enkl-monophonic-synthesizer/id968693910)
- [Korvpressor](https://appshunter.io/ios/app/korvpressor/id995163144)
- [Esspresso](https://appshunter.io/ios/app/esspresso/id1037999669)

All apps by Klevgrand Produkter AB: https://appshunter.io/developer/1118902192

## Related topics

[rassel](https://appshunter.io/ios/topics/rassel) · [shaker instrument](https://appshunter.io/ios/topics/shaker-instrument) · [shaker](https://appshunter.io/ios/topics/shaker) · [shaker care](https://appshunter.io/ios/topics/shaker-care)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*