# Discord4 vs Crystals Harmonizer®

Discord4 and Crystals Harmonizer® both sit at 4.7 stars, but that hides the real split: 92% of Crystals Harmonizer®'s written reviews are positive against 61% of Discord4's. Crystals Harmonizer® also leads on update cadence (every 3 months vs every 14 months) and iOS requirement (11.0 vs 16.0). Discord4's advantage is price ($8.99 vs $14.99). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Discord4 costs $8.99 and Crystals Harmonizer® $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for Discord4 against 4.6 for Crystals Harmonizer®. Both are backed by a comparable volume of ratings — 29 and 20 respectively. Written reviews are what separate them: 61% of Discord4's written reviews are positive against 92% of Crystals Harmonizer®'s.

Discord4 ships an update every 14 months, Crystals Harmonizer® every 3 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Discord4 | Crystals Harmonizer® |
| --- | --- | --- |
| Price | **$8.99** | $14.99 |
| Rating | **[4.7 (29 ratings)](https://appshunter.io/ios/app/discord4/id1345946446/reviews)** | [4.6 (20 ratings)](https://appshunter.io/ios/app/crystals-harmonizer/id1504257443/reviews) |
| Number of ratings | **29** | 20 |
| Positive reviews | 61.1% of reviews | **92.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Size | 29 MB | 15 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Audio Damage, Inc.](https://appshunter.io/developer/1248448317) | [Eventide](https://appshunter.io/developer/546518026) |

## What reviewers say

### Discord4

[App page](https://appshunter.io/ios/app/discord4/id1345946446)

This stereo pitch-shifting delay app offers three distinct algorithms for vintage, clean, or experimental granular effects. It features tempo-synced delays, a reverb in the feedback loop, and flexible LFO modulation for extensive sound design. Control pitch shifts with MIDI and fine-tune effects with buffer size adjustments.

**Highlights:** Three pitch-shifting algorithms (Vintage, Clean, Granular), Tempo-synced and free-running delays, Reverb in feedback loop for shimmer effects, Flexible LFO modulation, MIDI note control for pitch shifting, True stereo operation with panorama controls, Resizable vector-based GUI

**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 Discord4 free?

Discord4 costs $8.99, with no in-app purchases.

### Is Crystals Harmonizer® free?

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

### Which has better reviews, Discord4 or Crystals Harmonizer®?

Discord4 is rated higher. Discord4 averages 4.7 out of 5 from 29 ratings, while Crystals Harmonizer® averages 4.6 from 20 ratings.

### Do Discord4 or Crystals Harmonizer® have ads?

Neither Discord4 nor Crystals Harmonizer® shows ads.

### Which is updated more often, Discord4 or Crystals Harmonizer®?

Discord4 ships an update every 14 months, and Crystals Harmonizer® every 3 months. Most recently, Discord4 was updated on November 2, 2026 and Crystals Harmonizer® on November 3, 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.*