Comparison

KNOCK vs FAC Smash

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
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 Smash

This app offers powerful sound shaping with extreme compression and unique features to refine audio. It provides multi-band processing, a creative noise gate, and parallel compression with a visual waveform display for effortless adjustments.

Highlights
  • Extreme compression with analog nuances
  • Unique 'flatten' feature for dynamics
  • Multi-band processing with steep filter slopes
  • Creative noise gate
  • Parallel compression and brickwall limiter
  • Waveform display
  • Portrait and landscape views
Features
Read full description

• Loud, Aggressive, and Powerful Sound Shaping • Extreme compression, capturing vintage analog nuances and colors • Unique 'flatten' feature to preserve character while restoring dynamics • Fast sound refining with impact and sustain controls • Single or multi-band, with filter slopes ranging from 6dB to an impressive 192dB • Creative noise gate: smoothly blend from single to multi-band • Parallel compression and optional master Brickwall limiter • Intuitive workflow for effortless adjustments • Low latency, waveform display of the pre and post signal • Advanced Responsive Design, portrait and landscape views | Light/Dark Theme • Universal Purchase: AUv3 for iOS (iPad/iPhone), macOS and Vision Pro FAC Smash is all about generating explosive energy for your beats and instruments! Squash, squeeze... SMASH your sound, or simply get that magical gentle touch when you seek refinement and finesse. Behind its unconventional and flashy appearance lies a series of boosted upward compressors meticulously designed to include the specific nuances and colors of vintage analog devices. The plugin can operate on either one or three frequency bands and provides a couple of filter slopes ranging from a subtle and transparent 6dB to an impressive 192dB! The workflow is optimized for simplicity and intuitiveness, enabling effortless transitions between subtle adjustments and complete alterations with its up to 120dB of upwards compression. Yes!, FAC Smash can push the sound to its extreme limits, potentially creating a "sausage-like" signal. But fear not — the 'flatten' feature steps in to restore dynamics while preserving the aggressive character, giving you the best of both worlds. The built-in noise gate circuit at the input adds yet another layer of sonic sculpting possibilities. Whether acting on the entire signal or individual frequency bands, this circuit can transform your sound, expanding your creative possibilities. But the magic doesn't stop there; FAC Smash offers parallel compression, an optional master Brickwall limiter, and a waveform view of both the pre and post signal! You'll have a clear visual representation of your audio as you sculpt it to perfection. The documentation is available at fredantoncorvest.com/FAC_Smash.html

Screenshots

KNOCK3 screens
FAC Smash3 screens

Verdict

The call

The clearest difference is in-app purchases: KNOCK at none against FAC Smash's 3. KNOCK also leads on ratings volume (22 vs 6) and iOS requirement (12.0 vs 16.4). FAC Smash's advantage is rating (4.3 vs 4.0) and update cadence (every 7 months vs every 39 months). On ads, monetization model and device support 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 Smash $6.99 up front. FAC Smash sells 3 one-off in-app purchases. KNOCK asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FAC Smash holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 22 and 6 respectively. Written reviews point the same way: 58% of KNOCK's written reviews are positive against 80% of FAC Smash's.

UpkeepUpdate frequency

KNOCK ships an update every 39 months, FAC Smash every 7 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

Scorecard7 real differences · 3 level
KNOCK versus FAC Smash: the parameters behind the verdict, then further details
ParameterKNOCKFAC Smash
Price$9.99$6.99 — better
Rating4.0 (22 ratings)4.3 (6 ratings) — better
Positive reviews57.9% of reviews80.0% of reviews — better
Number of ratings22 — better6
Update frequencyEvery 39 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
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 Smash

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews5 reviews
Positive80.0%
Neutral20.0%
Negative0.0%

In-app purchases

None

KNOCK

No in-app purchases

3 purchases

FAC Smash

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 Smash free?
FAC Smash costs $6.99, and also offers in-app purchases.
Which has better reviews, KNOCK or FAC Smash?
FAC Smash is rated higher. KNOCK averages 4.0 out of 5 from 22 ratings, while FAC Smash averages 4.3 from 6 ratings.
Do KNOCK or FAC Smash have ads?
Neither KNOCK nor FAC Smash shows ads.
Which is updated more often, KNOCK or FAC Smash?
KNOCK ships an update every 39 months, and FAC Smash every 7 months. Most recently, KNOCK was updated on October 27, 2026 and FAC Smash on October 24, 2026.

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