# Analog Rack Tremolo vs Crystals Harmonizer®

The clearest difference is price: Analog Rack Tremolo at $3.99 against Crystals Harmonizer®'s $14.99. Analog Rack Tremolo also leads on rating (5.0 vs 4.6). Crystals Harmonizer®'s advantage is update cadence (every 3 months vs every 19 months) and iOS requirement (11.0 vs 15). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Analog Rack Tremolo costs $3.99 and Crystals Harmonizer® $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

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

Analog Rack Tremolo ships an update every 19 months, Crystals Harmonizer® every 3 months. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Analog Rack Tremolo | Crystals Harmonizer® |
| --- | --- | --- |
| Price | **$3.99** | $14.99 |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/analog-rack-tremolo/id1497464833/reviews)** | [4.6 (20 ratings)](https://appshunter.io/ios/app/crystals-harmonizer/id1504257443/reviews) |
| Number of ratings | 7 | **20** |
| Positive reviews | **100.0% of reviews** | 92.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Size | 26 MB | 15 MB |
| Requires iOS | 15 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nembrini Audio](https://appshunter.io/developer/1493296895) | [Eventide](https://appshunter.io/developer/546518026) |

## What reviewers say

### Analog Rack Tremolo

[App page](https://appshunter.io/ios/app/analog-rack-tremolo/id1497464833)

This audio effect plugin emulates the sound of analog and digital tremolo pedals. It offers a simple yet powerful interface with a custom tube preamp circuit for unique signal coloration. Use it as a standalone app or within other music production software.

**Highlights:** Analog and digital tremolo emulation, Custom tube preamp circuit, Signal coloration, Standalone app, AudioUnit v3 effect, Inter-App Audio effect

**Features:** Vision Pro support

**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 Analog Rack Tremolo free?

Analog Rack Tremolo costs $3.99, with no in-app purchases.

### Is Crystals Harmonizer® free?

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

### Which has better reviews, Analog Rack Tremolo or Crystals Harmonizer®?

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

### Do Analog Rack Tremolo or Crystals Harmonizer® have ads?

Neither Analog Rack Tremolo nor Crystals Harmonizer® shows ads.

### Which is updated more often, Analog Rack Tremolo or Crystals Harmonizer®?

Analog Rack Tremolo ships an update every 19 months, and Crystals Harmonizer® every 3 months. Most recently, Analog Rack Tremolo was updated on October 18, 2026 and Crystals Harmonizer® on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*