# MIDIRack vs Seyfert

The clearest difference is price: Seyfert at $1.99 against MIDIRack's $14.99. Seyfert also leads on in-app purchases (none vs 1) and review sentiment (100% vs 67%). MIDIRack's advantage is ratings volume (8 vs 2). On update cadence, ads and device support there is nothing between them.

MIDIRack costs $14.99 and Seyfert $1.99 up front. MIDIRack sells 1 one-off in-app purchase. Seyfert asks for nothing beyond the download.

Seyfert holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 8 and 2 respectively. Written reviews point the same way: 67% of MIDIRack's written reviews are positive against 100% of Seyfert's.

MIDIRack ships an update every 4 days, Seyfert every 2 days. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | MIDIRack | Seyfert |
| --- | --- | --- |
| Price | $14.99 | **$1.99** |
| Rating | [4.8 (8 ratings)](https://appshunter.io/ios/app/midirack/id6779712751/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/seyfert/id6794878287/reviews)** |
| Number of ratings | **8** | 2 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 28 MB | 3 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kai Aras](https://appshunter.io/developer/370820899) | [Konstantin Torsten Schutz](https://appshunter.io/developer/6778600016) |

## 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 |


### Seyfert

[App page](https://appshunter.io/ios/app/seyfert/id6794878287)

This music effect plugin creates unique echoes that orbit and revolve around the listener. It offers advanced control over pitch, depth, and tone for each echo, with a built-in reverb and EQ for a rich soundscape. It functions as a standalone app or an Audio Unit for music production software.

**Highlights:** Orbital echo generation, Spin and Doppler pitch-bend effects, 3D binaural imaging, Octave shimmer and transpose, Per-echo tone and drive, Echo-focused reverb and EQ, Standalone and AUv3 support

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

**In-app purchases:** none


## Frequently asked questions

### Is MIDIRack free?

MIDIRack costs $14.99, and also offers in-app purchases.

### Is Seyfert free?

Seyfert costs $1.99, with no in-app purchases.

### Which has better reviews, MIDIRack or Seyfert?

Seyfert is rated higher. MIDIRack averages 4.8 out of 5 from 8 ratings, while Seyfert averages 5.0 from 2 ratings.

### Do MIDIRack or Seyfert have ads?

Neither MIDIRack nor Seyfert shows ads.

### Which is updated more often, MIDIRack or Seyfert?

MIDIRack ships an update every 4 days, and Seyfert every 2 days. Most recently, MIDIRack was updated on October 7, 2026 and Seyfert on October 1, 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.*