# Crystals Harmonizer® vs MF

The clearest difference is rating: MF at 5.0 against Crystals Harmonizer®'s 4.6. MF also leads on update cadence (monthly vs every 3 months). On price, review sentiment, ratings volume and ads there is nothing between them.

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

MF holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 20 and 7 respectively. Written reviews point the same way: 92% of Crystals Harmonizer®'s written reviews are positive against 100% of MF's.

Crystals Harmonizer® ships an update every 3 months, MF monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Crystals Harmonizer® | MF |
| --- | --- | --- |
| Price | $14.99 | $14.99 |
| Rating | [4.6 (20 ratings)](https://appshunter.io/ios/app/crystals-harmonizer/id1504257443/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/mf-103s-12-stage-phaser/id6450717283/reviews)** |
| Number of ratings | **20** | 7 |
| Positive reviews | 92.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Paid | Paid |
| Size | 15 MB | 43 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) | [Moog Music Inc.](https://appshunter.io/developer/396776421) |

## 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


### MF

[App page](https://appshunter.io/ios/app/mf-103s-12-stage-phaser/id6450717283)

This app recreates a classic analog effects pedal, offering a 12-stage voltage-controlled phaser and a low-frequency oscillator. It's designed to process and modulate any audio source, from instruments to voice, providing a psychedelic and interactive sound experience.

**Highlights:** 12-stage voltage-controlled phaser, Voltage-controlled LFO, Recreation of classic analog pedal, Processes various audio sources, AUv3 effects plugin

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Crystals Harmonizer® free?

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

### Is MF free?

MF costs $14.99, with no in-app purchases.

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

MF is rated higher. Crystals Harmonizer® averages 4.6 out of 5 from 20 ratings, while MF averages 5.0 from 7 ratings.

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

Neither Crystals Harmonizer® nor MF shows ads.

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

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