# NS2 AIR MONITORS vs Knob Lab

The clearest difference is review sentiment: Knob Lab at 85% against NS2 AIR MONITORS's 17%. Knob Lab also leads on rating (4.2 vs 2.0) and update cadence (every 4 months vs every 9 months). NS2 AIR MONITORS's advantage is in-app purchases (none vs 4) and iOS requirement (9.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Knob Lab sells 4 one-off in-app purchases. NS2 AIR MONITORS asks for nothing beyond the download.

Knob Lab holds the better App Store score, 4.2 against 2.0. Both are backed by a comparable volume of ratings — 3 and 13 respectively. Written reviews point the same way: 17% of NS2 AIR MONITORS's written reviews are positive against 85% of Knob Lab's.

NS2 AIR MONITORS ships an update every 9 months, Knob Lab every 4 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | NS2 AIR MONITORS | Knob Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (3 ratings)](https://appshunter.io/ios/app/ns2-air-monitors/id670190671/reviews) | **[4.2 (13 ratings)](https://appshunter.io/ios/app/knob-lab/id727466234/reviews)** |
| Number of ratings | 3 | **13** |
| Positive reviews | 16.7% of reviews | **84.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 66 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Hansong(Nanjing) Technology Ltd.](https://appshunter.io/developer/565859963) | [Uri Nachmias](https://appshunter.io/developer/316332139) |

## What reviewers say

### NS2 AIR MONITORS

[App page](https://appshunter.io/ios/app/ns2-air-monitors/id670190671)

This app facilitates the setup and management of NS2 v2 wireless speakers. It guides users through Wi-Fi connection for wireless music streaming and allows for speaker management, renaming, and firmware updates.

**Highlights:** Wi-Fi network connection, Wireless music streaming, Speaker management, Speaker renaming, Firmware updates

**In-app purchases:** none


### Knob Lab

[App page](https://appshunter.io/ios/app/knob-lab/id727466234)

This application transforms your iOS device into a versatile MIDI controller. It allows you to manage various DAWs and music software remotely via USB, WiFi, or Bluetooth. Create intricate control setups with a single rotary knob, affecting multiple MIDI destinations simultaneously.

**Highlights:** Remote DAW control, USB, WiFi, Bluetooth connectivity, Virtual MIDI support, Audiobus integration, Complex control mapping, iPad support, MIDI logger

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Two Knob Layout | $0.99 | one-time |
| Four/Six Knob Layout | $0.99 | one-time |
| Nine/Twelve knob layout. | $0.99 | one-time |
| Unlock all layouts | $1.99 | one-time |


## Frequently asked questions

### Is NS2 AIR MONITORS free?

NS2 AIR MONITORS is free to download, with no in-app purchases.

### Is Knob Lab free?

Knob Lab is free to download, with in-app purchases available.

### Which has better reviews, NS2 AIR MONITORS or Knob Lab?

Knob Lab is rated higher. NS2 AIR MONITORS averages 2.0 out of 5 from 3 ratings, while Knob Lab averages 4.2 from 13 ratings.

### Do NS2 AIR MONITORS or Knob Lab have ads?

Neither NS2 AIR MONITORS nor Knob Lab shows ads.

### Which is updated more often, NS2 AIR MONITORS or Knob Lab?

NS2 AIR MONITORS ships an update every 9 months, and Knob Lab every 4 months. Most recently, NS2 AIR MONITORS was updated on November 1, 2026 and Knob Lab on November 6, 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.*