# KNOCK Clipper vs NebulizerAU

The clearest difference is rating: NebulizerAU at 5.0 against KNOCK Clipper's 4.2. NebulizerAU also leads on monetization model (free vs paid) and update cadence (daily vs every 34 months). KNOCK Clipper's advantage is iOS requirement (12.0 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NebulizerAU holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 6 and 3 respectively.

KNOCK Clipper ships an update every 34 months, NebulizerAU daily. The most recent releases landed on October 16, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | KNOCK Clipper | NebulizerAU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (6 ratings)](https://appshunter.io/ios/app/knock-clipper/id1663468033/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/nebulizerau/id6760477018/reviews)** |
| Number of ratings | **6** | 3 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Daily** |
| Monetization | Paid | **Free** |
| Size | 8 MB | 2 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Plugins That Knock](https://appshunter.io/developer/1648092173) | [Matthew Caldwell](https://appshunter.io/developer/993500585) |

## What reviewers say

### KNOCK Clipper

[App page](https://appshunter.io/ios/app/knock-clipper/id1663468033)

This app offers a premium, adjustable hard and soft clipper effect for music production. It's inspired by the signature sound of a popular drum kit series, designed to shape the sonics of modern music.

**Highlights:** User adjustable hard clipper, User adjustable soft clipper, Premium quality audio effect, Inspired by signature drum kit sounds, Shapes modern music sonics

**Features:** Vision Pro support

**In-app purchases:** none


### NebulizerAU

[App page](https://appshunter.io/ios/app/nebulizerau/id6760477018)

This audio effect plugin emulates the sound of an old-school, warbly tape delay. It functions as an AUv3 effect, allowing it to be used on multiple tracks within various audio applications. It delivers a distinct lo-fi sound.

**Highlights:** AUv3 effect plugin, Tape delay emulation, Lo-fi sound character, Stackable on multiple tracks, Compatible with GarageBand, AUM

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is KNOCK Clipper free?

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

### Is NebulizerAU free?

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

### Which has better reviews, KNOCK Clipper or NebulizerAU?

NebulizerAU is rated higher. KNOCK Clipper averages 4.2 out of 5 from 6 ratings, while NebulizerAU averages 5.0 from 3 ratings.

### Do KNOCK Clipper or NebulizerAU have ads?

Neither KNOCK Clipper nor NebulizerAU shows ads.

### Which is updated more often, KNOCK Clipper or NebulizerAU?

KNOCK Clipper ships an update every 34 months, and NebulizerAU daily. Most recently, KNOCK Clipper was updated on October 16, 2026 and NebulizerAU on October 1, 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.*