# Knob Lab vs obra.art

The clearest difference is in-app purchases: obra.art at none against Knob Lab's 4. obra.art also leads on update cadence (every 9 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Knob Lab ships an update every 4 months, obra.art every 9 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Knob Lab | obra.art |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (12 ratings)](https://appshunter.io/ios/app/knob-lab/id727466234/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 84.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 66 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Uri Nachmias](https://appshunter.io/developer/316332139) | [Carlos Torres](https://appshunter.io/developer/6792012710) |

## What reviewers say

### 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 |


### obra.art

[App page](https://appshunter.io/ios/app/obraart/id6792012708)

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

**In-app purchases:** none


## Frequently asked questions

### Is Knob Lab free?

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

### Is obra.art free?

obra.art is free to download, with no in-app purchases.

### Do Knob Lab or obra.art have ads?

Neither Knob Lab nor obra.art shows ads.

### Which is updated more often, Knob Lab or obra.art?

Knob Lab ships an update every 4 months, and obra.art every 9 days. Most recently, Knob Lab was updated on October 24, 2026 and obra.art on October 24, 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.*