# MIDIRack vs Porthole Audio

The clearest difference is in-app purchases: Porthole Audio at none against MIDIRack's 1. Porthole Audio also leads on rating (5.0 vs 4.8) and price ($4.99 vs $7.99). MIDIRack's advantage is review sentiment (67% vs 50%) and update cadence (every 4 days vs every 11 days). On ratings volume, ads and device support there is nothing between them.

MIDIRack costs $7.99 and Porthole Audio $4.99 up front. MIDIRack sells 1 one-off in-app purchase. Porthole Audio asks for nothing beyond the download.

Porthole Audio holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 9 and 4 respectively. Written reviews complicate that: 67% of MIDIRack's written reviews are positive against 50% of Porthole Audio's, so the app with the better star average is not the one people write more warmly about.

MIDIRack ships an update every 4 days, Porthole Audio every 11 days. The most recent releases landed on October 28, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | MIDIRack | Porthole Audio |
| --- | --- | --- |
| Price | $7.99 | **$4.99** |
| Rating | [4.8 (9 ratings)](https://appshunter.io/ios/app/midirack/id6779712751/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/porthole-audio/id6810750563/reviews)** |
| Number of ratings | **9** | 4 |
| Positive reviews | **66.7% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 11 days |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#177** |
| Size | 28 MB | 7 MB |
| Requires iOS | **17.0** | 27.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kai Aras](https://appshunter.io/developer/370820899) | [Feras Alnatsheh](https://appshunter.io/developer/1150939919) |

## What reviewers say

### MIDIRack

[App page](https://appshunter.io/ios/app/midirack/id6779712751)

Design custom MIDI control surfaces with a variety of instruments and sequencers. Unlock advanced features like a visual MIDI processing graph for complex routing and generative music creation. Use it standalone, as an AUv3 plugin, or to control desktop DAWs.

**Highlights:** Customizable touch surface design, KB-1 keyboard suite with MPE support, Advanced step and matrix sequencers, Visual MIDI processing graph, Built-in instruments and samplers, Connects to desktop DAWs via USB or Bluetooth

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Graph Editor Unlock | $7.99 | one-time |


### Porthole Audio

[App page](https://appshunter.io/ios/app/porthole-audio/id6810750563)

**Currently charting:** #177 Top Paid · Music (US App Store)

This app captures system audio from your device and routes it into audio plug-ins. It allows you to host AUv3 plug-ins and use the app itself as an instrument within other music applications.

**Highlights:** Capture system audio, Route audio to plug-ins, Host AUv3 plug-ins, Use as an AUv3 instrument, Cross-app audio capture

**In-app purchases:** none


## Frequently asked questions

### Is MIDIRack free?

MIDIRack costs $7.99, and also offers in-app purchases.

### Is Porthole Audio free?

Porthole Audio costs $4.99, with no in-app purchases.

### Which has better reviews, MIDIRack or Porthole Audio?

Porthole Audio is rated higher. MIDIRack averages 4.8 out of 5 from 9 ratings, while Porthole Audio averages 5.0 from 4 ratings.

### Do MIDIRack or Porthole Audio have ads?

Neither MIDIRack nor Porthole Audio shows ads.

### Which is updated more often, MIDIRack or Porthole Audio?

MIDIRack ships an update every 4 days, and Porthole Audio every 11 days. Most recently, MIDIRack was updated on October 28, 2026 and Porthole Audio on October 26, 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.*