KNOCK vs FAC Clipper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Slap and punch through mixes
- Signature drum sound
- Extreme ease of use
- Seamless workflow integration
- Crafted by platinum producer
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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.
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.
- Enhances mix loudness
- Adds harmonic warmth
- Full-band and two-band clipping
- Precise visual metering
- Adjustable knee curve
- Dry/wet mix control
- Low latency
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• 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
Verdict
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
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.
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.
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.
| Parameter | KNOCK | FAC Clipper |
|---|---|---|
| Price | $9.99 | $9.99 |
| Rating | 3.9 (21 ratings) | 5.0 (9 ratings) — better |
| Positive reviews | 57.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 21 — better | 9 |
| Update frequency | Every 39 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Paid |
| Best chart rank | #179 — better | #191 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 12.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 9 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Plugins That Knock | Frederic Corvest |
Customer experience
KNOCK
FAC Clipper
In-app purchases
KNOCK
No in-app purchases
FAC Clipper
- Small Tip$1.99
- Medium Tip$4.99
- Large Tip$14.99









