# Crystals Harmonizer® vs volumeCTRL

The clearest difference is price: volumeCTRL at $4.99 against Crystals Harmonizer®'s $14.99. Crystals Harmonizer®'s advantage is rating (4.6 vs 3.2) and review sentiment (92% vs 50%). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Crystals Harmonizer® costs $14.99 and volumeCTRL $4.99 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 3.2. Both are backed by a comparable volume of ratings — 20 and 9 respectively. Written reviews point the same way: 92% of Crystals Harmonizer®'s written reviews are positive against 50% of volumeCTRL's.

Crystals Harmonizer® ships an update every 3 months, volumeCTRL every 9 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Crystals Harmonizer® | volumeCTRL |
| --- | --- | --- |
| Price | $14.99 | **$4.99** |
| Rating | **[4.6 (20 ratings)](https://appshunter.io/ios/app/crystals-harmonizer/id1504257443/reviews)** | [3.2 (9 ratings)](https://appshunter.io/ios/app/volumectrl/id6444421682/reviews) |
| Number of ratings | **20** | 9 |
| Positive reviews | **92.3% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | Paid | Paid |
| Size | 15 MB | 22 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eventide](https://appshunter.io/developer/546518026) | [auDSPr](https://appshunter.io/developer/1439844877) |

## What reviewers say

### 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


### volumeCTRL

[App page](https://appshunter.io/ios/app/volumectrl/id6444421682)

Gain precise control over your device's audio levels with this utility app. Adjust volume by percentage or dBFS, fine-tune with incremental steps, and temporarily dim or mute sound. Ideal for music, podcasts, and late-night media consumption.

**Highlights:** Precise volume adjustment by percentage or dBFS, Keypad for exact value input, Fine-tune volume with customizable step sizes, Temporary dim and mute functions, Seamless integration with device volume controls, Universal app for iPhone, iPad, and iPod touch

**In-app purchases:** none


## Frequently asked questions

### Is Crystals Harmonizer® free?

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

### Is volumeCTRL free?

volumeCTRL costs $4.99, with no in-app purchases.

### Which has better reviews, Crystals Harmonizer® or volumeCTRL?

Crystals Harmonizer® is rated higher. Crystals Harmonizer® averages 4.6 out of 5 from 20 ratings, while volumeCTRL averages 3.2 from 9 ratings.

### Do Crystals Harmonizer® or volumeCTRL have ads?

Neither Crystals Harmonizer® nor volumeCTRL shows ads.

### Which is updated more often, Crystals Harmonizer® or volumeCTRL?

Crystals Harmonizer® ships an update every 3 months, and volumeCTRL every 9 months. Most recently, Crystals Harmonizer® was updated on October 24, 2026 and volumeCTRL on October 27, 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.*