Comparison

KNOCK vs FAC Clipper

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

KNOCK

Enhance your drum sounds with this audio plugin designed for professional mixing. It helps drums cut through the mix with a powerful, impactful sound. Optimized for ease of use, it suits both new and experienced music producers.

Highlights
  • Slap and punch through mixes
  • Signature drum sound
  • Extreme ease of use
  • Seamless workflow integration
  • Crafted by platinum producer
Features
Currently charting
Read full description

KNOCK is the last plugin you will ever need to make your drums slap and punch through your mix. This plugin was meticulously crafted by platinum producer & award winning sound designer, DECAP. It is inspired by the signature sound of his popular drum kit series DRUMS THAT KNOCK, which has helped shaped the sonics of modern music. KNOCK is optimized for extreme ease of use for beginners and professionals alike. Use KNOCK to make your drums slap, and take you to the next level. Whether you are new to producing, or a seasoned pro, KNOCK will seamlessly fit into your workflow.

About

FAC Clipper

This audio plugin enhances mix loudness and adds harmonic warmth with flexible full-band and two-band clipping. It offers precise visual metering, adjustable knee curves, and a dry/wet mix for balanced sound. Designed for quick, intuitive peak control on iOS, macOS, and Vision Pro.

Highlights
  • Enhances mix loudness
  • Adds harmonic warmth
  • Full-band and two-band clipping
  • Precise visual metering
  • Adjustable knee curve
  • Dry/wet mix control
  • Low latency
Features
Currently charting
Read full description

• Enhances Mix Loudness and Adds Harmonic Warmth • Full-Band and Two-Band Clipper in a Single Plugin • Quick, lightweight, and designed for effortless flexibility! • Precise Visual Metering for Fast Peak Control • Knee Curve Adjustment, from Super Soft to Hard • Shape Control of the Harmonic Profile • Dry/Wet Mix for a Natural, Balanced Sound • Low Latency with Optional Oversampling • Advanced Responsive Design, portrait and landscape views • Universal Purchase: AUv3 for iOS (iPad/iPhone), macOS and Vision Pro FAC Clipper is designed to enhance your mix's loudness and add signature harmonic warmth. While it is based on a similar DSP architecture to the Clip processor in FAC Punchlab, it takes a different approach to clipping control, featuring an advanced user interface with precise metering to track and manage the peaks of the audio signal. The plugin also includes both a full-band clipper that processes the entire spectrum and a multi-band clipper, allowing you to independently clip low, high, or both frequency bands. This provides the flexibility to maintain transparent processing or experiment with creative adjustments, depending on your needs. Built with simplicity and flexibility in mind, FAC Clipper is quick, lightweight, and highly intuitive. The clean, streamlined interface lets you focus on what matters most; controlling the peak levels to maximize loudness while preserving clarity and avoiding the pumping effects often associated with heavily limited signals. Thanks to its precise waveform and level meters, using FAC Clipper is a breeze. Simply add the plugin to your track and adjust the input gain until the waveform meter reaches 0 dB. This gives you a clear view of the signal's dynamic range, making it easier to identify peaks. Next, set the ceiling just below the peaks you wish to control. You can also adjust the Knee parameter for smoother clipping and fine-tune the saturation to achieve the perfect warmth and character. Use the Mix parameter to blend the clipped signal with the original audio, allowing you to control the amount of clipping applied. This helps preserve the natural character of the sound while enhancing loudness and harmonic warmth. This is an AUv3 Effect and requires a compatible host to work The documentation is available at fredantoncorvest.com/FAC_Clipper.html

Screenshots

KNOCK3 screens
FAC Clipper3 screens

Verdict

The call

The clearest difference is rating: FAC Clipper at 5.0 against KNOCK's 3.9. FAC Clipper also leads on review sentiment (100% vs 58%) and update cadence (every 2 months vs every 39 months). KNOCK's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 16.4). On price, ratings volume, ads and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

KNOCK costs $9.99 and FAC Clipper $9.99 up front. FAC Clipper sells 3 one-off in-app purchases. KNOCK asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FAC Clipper holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 21 and 9 respectively. Written reviews point the same way: 58% of KNOCK's written reviews are positive against 100% of FAC Clipper's.

UpkeepUpdate frequency

KNOCK ships an update every 39 months, FAC Clipper every 2 months. The most recent releases landed on September 28, 2026 and September 21, 2026 respectively.

Scorecard5 real differences · 6 level
KNOCK versus FAC Clipper: the parameters behind the verdict, then further details
ParameterKNOCKFAC Clipper
Price$9.99$9.99
Rating3.9 (21 ratings)5.0 (9 ratings) — better
Positive reviews57.9% of reviews100.0% of reviews — better
Number of ratings21 — better9
Update frequencyEvery 39 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
Best chart rank#179 — better#191
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS12.0 — better16.4
Further details — not scored
Size9 MB3 MB
Age rating4+4+
DeveloperPlugins That KnockFrederic Corvest

Customer experience

KNOCK

All ratings21 ratings
Positive71.4%
Neutral0.0%
Negative28.6%
Written reviews19 reviews
Positive57.9%
Neutral5.3%
Negative36.8%

FAC Clipper

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

KNOCK

No in-app purchases

3 purchases

FAC Clipper

One-time3
  • Small Tip$1.99
  • Medium Tip$4.99
  • Large Tip$14.99

Questions

Is KNOCK free?
KNOCK costs $9.99, with no in-app purchases.
Is FAC Clipper free?
FAC Clipper costs $9.99, and also offers in-app purchases.
Which has better reviews, KNOCK or FAC Clipper?
FAC Clipper is rated higher. KNOCK averages 3.9 out of 5 from 21 ratings, while FAC Clipper averages 5.0 from 9 ratings.
Do KNOCK or FAC Clipper have ads?
Neither KNOCK nor FAC Clipper shows ads.
Which is updated more often, KNOCK or FAC Clipper?
KNOCK ships an update every 39 months, and FAC Clipper every 2 months. Most recently, KNOCK was updated on September 28, 2026 and FAC Clipper on September 21, 2026.
Which is more popular, KNOCK or FAC Clipper?
KNOCK currently peaks at #179 in the App Store charts, and FAC Clipper at #191. Chart position reflects recent download velocity rather than total install base.

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