Comparison

Schlap AUv3 vs KNOCK

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

Head to head
About

Schlap AUv3

This audio plugin offers an aggressive, characterful compressor inspired by vintage hardware. It enhances tracks with energy and impact by utilizing RMS detection for dynamic and punchy sound. It functions as a standalone app or an AUv3 plugin within music production hosts.

Highlights
  • Aggressive program-dependent compressor
  • RMS detection for dynamic sound
  • Standalone app and AUv3 plugin
  • Inspired by vintage hardware
  • Enhances track energy and impact
Currently charting
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Schlap is a characterful, colourful and aggressive sounding program-dependent AUv3, IAA & standalone compressor. It takes inspiration from hardware RMS compressors of the past and evolves them into a modern setting. If you want your tracks to be energetic, in-your-face and bold, make ‘em ‘Schlap’. The compressor uses a program-dependent attack and release influenced by old hardware which makes the compression sound characterful and dynamic. The RMS detection means that Schlap detects the average loudness of a signal, resulting in sudden short peaks being uncompressed so that they can attack hard and sound heavy hitting. Also inherently in RMS detection, there is a slight delay in compression which allows the initial, early transients to sneak through uncompressed so they keep their punch. You’ve got a safe, controlled track you think you’re happy with, but you have to ask yourself… ‘Does it Schlap?’ Schlap is both a stand-alone application as well as an AUv3 plugin, meaning it works within iOS and iPadOS hosts such as GarageBand.

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
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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.

Screenshots

Schlap AUv32 screens
KNOCK3 screens

Verdict

The call

The clearest difference is rating: Schlap AUv3 at 4.9 against KNOCK's 4.0. Schlap AUv3 also leads on review sentiment (100% vs 58%) and price ($4.99 vs $9.99). On ratings volume, ads, in-app purchases 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

Schlap AUv3 costs $4.99 and KNOCK $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Schlap AUv3 holds the better App Store score, 4.9 against 4.0. Both are backed by a comparable volume of ratings — 17 and 22 respectively. Written reviews point the same way: 100% of Schlap AUv3's written reviews are positive against 58% of KNOCK's.

UpkeepUpdate frequency

Schlap AUv3 ships an update every 11 months, KNOCK every 39 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 6 level
Schlap AUv3 versus KNOCK: the parameters behind the verdict, then further details
ParameterSchlap AUv3KNOCK
Price$4.99 — better$9.99
Rating4.9 (17 ratings) — better4.0 (22 ratings)
Positive reviews100.0% of reviews — better57.9% of reviews
Number of ratings1722 — better
Update frequencyEvery 11 months — betterEvery 39 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#176 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better12.0
Further details — not scored
Size5 MB9 MB
Age rating4+4+
DeveloperCaelum Audio LtdPlugins That Knock

Customer experience

Schlap AUv3

All ratings17 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

KNOCK

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

In-app purchases

None

Schlap AUv3

No in-app purchases

None

KNOCK

No in-app purchases

Questions

Is Schlap AUv3 free?
Schlap AUv3 costs $4.99, with no in-app purchases.
Is KNOCK free?
KNOCK costs $9.99, with no in-app purchases.
Which has better reviews, Schlap AUv3 or KNOCK?
Schlap AUv3 is rated higher. Schlap AUv3 averages 4.9 out of 5 from 17 ratings, while KNOCK averages 4.0 from 22 ratings.
Do Schlap AUv3 or KNOCK have ads?
Neither Schlap AUv3 nor KNOCK shows ads.
Which is updated more often, Schlap AUv3 or KNOCK?
Schlap AUv3 ships an update every 11 months, and KNOCK every 39 months. Most recently, Schlap AUv3 was updated on October 24, 2026 and KNOCK on October 25, 2026.

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