# Knob Lab vs Ribn

The clearest difference is price: Knob Lab at Free against Ribn's $3.99. Ribn's advantage is rating (4.8 vs 4.3) and in-app purchases (none vs 4). On review sentiment, ratings volume, ads and device support there is nothing between them.

Knob Lab is free to download; Ribn costs $3.99 up front. Knob Lab sells 4 one-off in-app purchases. Ribn asks for nothing beyond the download.

Ribn holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 12 and 30 respectively. Written reviews point the same way: 85% of Knob Lab's written reviews are positive against 91% of Ribn's.

Knob Lab ships an update every 5 months, Ribn every 3 days. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Knob Lab | Ribn |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [4.3 (12 ratings)](https://appshunter.io/ios/app/knob-lab/id727466234/reviews) | **[4.8 (30 ratings)](https://appshunter.io/ios/app/ribn/id1413777040/reviews)** |
| Number of ratings | 12 | **30** |
| Positive reviews | 84.6% of reviews | **90.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 66 MB | 28 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Uri Nachmias](https://appshunter.io/developer/316332139) | [Nebojsa Petrovic](https://appshunter.io/developer/639977744) |

## 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 |


### Ribn

[App page](https://appshunter.io/ios/app/ribn/id1413777040)

This app provides a unique MIDI controller experience with 8 assignable ribbons. It allows you to record and loop finger movements, adding organic modulation to synthesizers and effects. Control various MIDI-responsive gear, from hardware synths to software instruments.

**Highlights:** 8 MIDI CC ribbon pads, Record and loop finger movement, Configurable MIDI channel and CC# per ribbon, Turn off looping for regular slider functionality, Switch between 3 sets of configurations with presets, MIDI sending in background, iPad landscape mode

**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 Ribn free?

Ribn costs $3.99, with no in-app purchases.

### Which has better reviews, Knob Lab or Ribn?

Ribn is rated higher. Knob Lab averages 4.3 out of 5 from 12 ratings, while Ribn averages 4.8 from 30 ratings.

### Do Knob Lab or Ribn have ads?

Neither Knob Lab nor Ribn shows ads.

### Which is updated more often, Knob Lab or Ribn?

Knob Lab ships an update every 5 months, and Ribn every 3 days. Most recently, Knob Lab was updated on October 13, 2026 and Ribn 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.*