# Hohner MIDI SqueezeBox vs Crystals Harmonizer®

The clearest difference is review sentiment: Crystals Harmonizer® at 92% against Hohner MIDI SqueezeBox's 30%. Crystals Harmonizer® also leads on rating (4.6 vs 1.0) and update cadence (every 3 months vs every 22 months). Hohner MIDI SqueezeBox's advantage is price ($4.99 vs $14.99). On ads, in-app purchases and monetization model there is nothing between them.

Hohner MIDI SqueezeBox costs $4.99 and Crystals Harmonizer® $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Crystals Harmonizer® holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Crystals Harmonizer® has 20 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 30% of Hohner MIDI SqueezeBox's written reviews are positive against 92% of Crystals Harmonizer®'s.

Hohner MIDI SqueezeBox ships an update every 22 months, Crystals Harmonizer® every 3 months. Both last shipped on October 14, 2026.

## The numbers

| Metric | Hohner MIDI SqueezeBox | Crystals Harmonizer® |
| --- | --- | --- |
| Price | **$4.99** | $14.99 |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/hohner-midi-squeezebox/id447940617/reviews) | **[4.6 (20 ratings)](https://appshunter.io/ios/app/crystals-harmonizer/id1504257443/reviews)** |
| Number of ratings | 1 | **20** |
| Positive reviews | 30.0% of reviews | **92.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Size | 29 MB | 15 MB |
| Requires iOS | 16.6 | **11.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Michael Eskin](https://appshunter.io/developer/342739369) | [Eventide](https://appshunter.io/developer/546518026) |

## What reviewers say

### Hohner MIDI SqueezeBox

[App page](https://appshunter.io/ios/app/hohner-midi-squeezebox/id447940617)

This app acts as a MIDI control surface for iPads, simulating a 31-button diatonic button accordion. It's designed to control external hardware or virtual instruments, offering customizable MIDI settings and a push/pull bellows simulation.

**Highlights:** 31-button three-row diatonic button accordion layout, CoreMIDI control surface for iPad, Simulates push/pull bellows action, Customizable MIDI volume, channel, and velocity, Supports transposition for different tunings, Virtual MIDI port output option

**In-app purchases:** none


### Crystals Harmonizer®

[App page](https://appshunter.io/ios/app/crystals-harmonizer/id1504257443)

This app offers advanced pitch shifting, delay, and reverb effects inspired by a classic hardware unit. Create expansive, modulated soundscapes for instruments and vocals, with real-time control over parameters.

**Highlights:** Twin reverse pitch shifters, Reverse granular delays, Real-time RIBBON control, Octave up FLEX button, Long decay reverb, Musical micro-pitching, Standalone and AUv3 plugin

**In-app purchases:** none


## Frequently asked questions

### Is Hohner MIDI SqueezeBox free?

Hohner MIDI SqueezeBox costs $4.99, with no in-app purchases.

### Is Crystals Harmonizer® free?

Crystals Harmonizer® costs $14.99, with no in-app purchases.

### Which has better reviews, Hohner MIDI SqueezeBox or Crystals Harmonizer®?

Crystals Harmonizer® is rated higher. Hohner MIDI SqueezeBox averages 1.0 out of 5 from 1 ratings, while Crystals Harmonizer® averages 4.6 from 20 ratings.

### Do Hohner MIDI SqueezeBox or Crystals Harmonizer® have ads?

Neither Hohner MIDI SqueezeBox nor Crystals Harmonizer® shows ads.

### Which is updated more often, Hohner MIDI SqueezeBox or Crystals Harmonizer®?

Hohner MIDI SqueezeBox ships an update every 22 months, and Crystals Harmonizer® every 3 months. Most recently, Hohner MIDI SqueezeBox was updated on October 14, 2026 and Crystals Harmonizer® on October 14, 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.*