---
title: "Rassel - Pocket shaker — App Overview"
url: https://marlvel.ai/apps/com-klevgrand-eggg
category: Music
developer: Klevgränd produkter AB
platforms: ios
rating: 4.7 (78 ratings)
pricing: paid
report_level: overview
generated: 2026-04-21
last_verified: "2026-04-21T09:48:41.485Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** Rassel focuses on high-fidelity motion-to-sound mapping to provide a realistic percussion experience on mobile devices.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Music |
| Rating | 4.7 ★ (78) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 1.0.3 |
| Developer | Klevgränd produkter AB |

<!-- SECTION: Summary -->
## What is Rassel - Pocket shaker?

Rassel is a percussion instrument app that utilizes the iPhone's gyroscope to simulate realistic shaking sounds. It distinguishes itself from competitors through a proprietary audio rendering engine that maps device movement directly to instrument velocity.

<!-- SECTION: Key Features -->
## Key Features

- **Instrument Variety**: Includes four distinct percussion sounds: Egg, Shaker, Tambourine, and Bells.
- **Physics-Based Audio Engine**: Maps gyroscope data to continuous velocity changes for realistic sound response.
- **Customizable Sensitivity**: Allows users to toggle between loose, normal, and tight agitation settings.
- **Loudness Boost**: Provides an optional setting to increase the output volume of the instruments.

<!-- SECTION: Target Audience -->
## Who is it for?

Musicians and hobbyists looking for a responsive, lifelike digital percussion tool.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/rassel-pocket-shaker/id1575364575?uo=2)
- [Full Intelligence Report](https://marlvel.ai/apps/com-klevgrand-eggg)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/com-klevgrand-eggg).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*