# MIDIRack vs Sightlines

The clearest difference is in-app purchases: Sightlines at none against MIDIRack's 1. Sightlines also leads on review sentiment (100% vs 67%) and price ($7.99 vs $14.99). On ratings volume, update cadence, ads and device support there is nothing between them.

MIDIRack costs $14.99 and Sightlines $7.99 up front. MIDIRack sells 1 one-off in-app purchase. Sightlines asks for nothing beyond the download.

Sightlines holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 8 and 6 respectively. Written reviews point the same way: 67% of MIDIRack's written reviews are positive against 100% of Sightlines's.

MIDIRack ships an update every 4 days, Sightlines weekly. The most recent releases landed on September 20, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | MIDIRack | Sightlines |
| --- | --- | --- |
| Price | $14.99 | **$7.99** |
| Rating | [4.8 (8 ratings)](https://appshunter.io/ios/app/midirack/id6779712751/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/sightlines-harmonic-filter/id6801937031/reviews)** |
| Number of ratings | **8** | 6 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 28 MB | 19 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kai Aras](https://appshunter.io/developer/370820899) | [Aqeel Aadam](https://appshunter.io/developer/1724235864) |

## 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 |


### Sightlines

[App page](https://appshunter.io/ios/app/sightlines-harmonic-filter/id6801937031)

Shape sounds with a playable harmonic filter. Add motion, stereo spread, and unique textures to noise, samples, or synths. Tune it like a resonator or control it with MIDI for endless sonic possibilities.

**Highlights:** Harmonic filter bank, MIDI control, Sample loading, Noise and synth sound sources, Modulation capabilities, Built-in chorus, delay, and reverb

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MIDIRack free?

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

### Is Sightlines free?

Sightlines costs $7.99, with no in-app purchases.

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

Sightlines is rated higher. MIDIRack averages 4.8 out of 5 from 8 ratings, while Sightlines averages 5.0 from 6 ratings.

### Do MIDIRack or Sightlines have ads?

Neither MIDIRack nor Sightlines shows ads.

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

MIDIRack ships an update every 4 days, and Sightlines weekly. Most recently, MIDIRack was updated on September 20, 2026 and Sightlines 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.*