# Mid vs SL Knock

The clearest difference is update cadence: SL Knock at weekly against Mid's every 14 months. Mid's advantage is price ($5.99 vs $6.99) and iOS requirement (12.1 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Mid costs $5.99 and SL Knock $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mid ships an update every 14 months, SL Knock weekly. The most recent releases landed on September 27, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Mid | SL Knock |
| --- | --- | --- |
| Price | **$5.99** | $6.99 |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/mid-side-continuum/id6465949713/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Weekly** |
| Monetization | Paid | — |
| Size | 9 MB | 28 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [quantovox](https://appshunter.io/developer/484686124) | [VIACHESLAV ZHILTSOV](https://appshunter.io/developer/1862005860) |

## What reviewers say

### Mid

[App page](https://appshunter.io/ios/app/mid-side-continuum/id6465949713)

This app offers unique stereo transformations, allowing for smooth, continuous intervals between L/R and M/S representations. It enables new modulation possibilities and can be used as a width-preserving panner or to transform any stereo effect into an M/S one.

**Highlights:** Continuous mid-side interval, Width-preserving panning, Spatial modulation effect, Transform stereo effects to M/S, Lossless stereo field preservation, Tempo sync capable LFO, Paired mode for effect modulation

**Features:** 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 Mid free?

Mid costs $5.99, with no in-app purchases.

### Is SL Knock free?

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

### Do Mid or SL Knock have ads?

Neither Mid nor SL Knock shows ads.

### Which is updated more often, Mid or SL Knock?

Mid ships an update every 14 months, and SL Knock weekly. Most recently, Mid was updated on September 27, 2026 and SL Knock on October 16, 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.*