# LA Comp vs SL Knock

The clearest difference is update cadence: SL Knock at every 5 days against LA Comp's every 3 weeks. SL Knock also leads on price ($6.99 vs $9.99). LA Comp's advantage is iOS requirement (12.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

LA Comp costs $9.99 and SL Knock $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

LA Comp ships an update every 3 weeks, SL Knock every 5 days. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | LA Comp | SL Knock |
| --- | --- | --- |
| Price | $9.99 | **$6.99** |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/la-comp/id6741395806/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Paid | — |
| Size | 51 MB | 28 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OSC Audio](https://appshunter.io/developer/1693533681) | [VIACHESLAV ZHILTSOV](https://appshunter.io/developer/1862005860) |

## What reviewers say

### LA Comp

[App page](https://appshunter.io/ios/app/la-comp/id6741395806)

This audio effect plugin offers a vintage-inspired optical compressor with modern flexibility. It provides in-depth control over dynamics, tube flavors, and stereo width, allowing for precise sound shaping on vocals and mixes. Compatible across multiple platforms for on-the-go creativity.

**Highlights:** Vintage and modern optical compression, Multiple tube flavor options, Auto-Gain functionality, Emphasis frequency control, Stereo spread for width, Side-chain input, Cross-platform presets

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### SL Knock

[App page](https://appshunter.io/ios/app/sl-knock/id6797349065)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is LA Comp free?

LA Comp costs $9.99, with no in-app purchases.

### Is SL Knock free?

SL Knock costs $6.99, with no in-app purchases.

### Do LA Comp or SL Knock have ads?

Neither LA Comp nor SL Knock shows ads.

### Which is updated more often, LA Comp or SL Knock?

LA Comp ships an update every 3 weeks, and SL Knock every 5 days. Most recently, LA Comp was updated on October 9, 2026 and SL Knock 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.*