# SL Knock — Punch and weight shaper

> Punch and weight shaper (iPhone/iPad app by VIACHESLAV ZHILTSOV.)

- Source: https://appshunter.io/ios/app/sl-knock/id6797349065 (this page in markdown: same URL + `.md`)
- Developer: [VIACHESLAV ZHILTSOV](https://appshunter.io/developer/1862005860)
- Category: Music, Utilities
- Price: $4.99
- Age rating: 4+
- Requires: iOS 15.0 · 32 MB
- Released: 2026-08-18
- Data updated: 2026-09-11
- User reviews in markdown: https://appshunter.io/ios/app/sl-knock/id6797349065/reviews.md

## What is SL Knock?

SL Knock is a focused AUv3 dynamics and tone effect for adding punch, body and controlled low-end weight to drums, samples and loops.

• Fast controls for impact and body
• Tone shaping for tighter or heavier character
• Mix control for parallel processing
• Factory presets and local user presets
• AUv3 support for compatible iPad music hosts

Works as a standalone preview app and as an AUv3 effect in GarageBand, AUM, Cubasis, BeatMaker 3 and other compatible hosts.


## Version history (last 5 releases)

### 1.2 — 2026-09-10

Improved performance, fixed flickering on some devices, and optimized the interface for smaller screens in apps like Cubasis.

### 1.0.3 — 2026-09-03

Improved touch tracking, glass meters and responsive layout. Updated AUv3 preset menus, navigation and host state restoration. The audio unit now appears consistently under Sfoor Labs in compatible hosts.

### 1.0.2 — 2026-08-31

Updated App Store screenshots with corrected SL Knock branding and a clear, undistorted view of the full interface.

### 1.0.1 — 2026-08-31

New SL branding, refreshed product visuals and reliability improvements.

### 1.0 — 2026-08-18

No release notes.

## More apps by VIACHESLAV ZHILTSOV

- [SfocusPulse](https://appshunter.io/ios/app/sfocuspulse/id6756753134)
- [DayStreaks](https://appshunter.io/ios/app/daystreaks/id6756762294)
- [SayDO - Voice to Action App](https://appshunter.io/ios/app/saydo-voice-to-action-app/id6756865724)
- [Quanta Drift](https://appshunter.io/ios/app/quanta-drift/id6759072550)
- [Zero Bricks](https://appshunter.io/ios/app/zero-bricks/id6759077225)
- [FlagHaul Tanks](https://appshunter.io/ios/app/flaghaul-tanks/id6759115471)

All apps by VIACHESLAV ZHILTSOV: https://appshunter.io/developer/1862005860

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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 2026-09-11.*