# Harmonizer audio effect vs Wah Pedal

The clearest difference is price: Wah Pedal at Free against Harmonizer audio effect's $1.99. Wah Pedal also leads on review sentiment (67% vs 23%) and rating (4.2 vs 3.0). Harmonizer audio effect's advantage is update cadence (every 8 months vs every 47 months) and iOS requirement (10.0 vs 15). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Wah Pedal is free to download; Harmonizer audio effect costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Wah Pedal holds the better App Store score, 4.2 against 3.0. Both are backed by a comparable volume of ratings — 9 and 11 respectively. Written reviews point the same way: 23% of Harmonizer audio effect's written reviews are positive against 67% of Wah Pedal's.

Harmonizer audio effect ships an update every 8 months, Wah Pedal every 47 months. The most recent releases landed on November 2, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Harmonizer audio effect | Wah Pedal |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [3.0 (9 ratings)](https://appshunter.io/ios/app/harmonizer-audio-effect/id1209475596/reviews) | **[4.2 (11 ratings)](https://appshunter.io/ios/app/wah-pedal/id6444608537/reviews)** |
| Number of ratings | 9 | **11** |
| Positive reviews | 23.1% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 47 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 14 MB | 45 MB |
| Requires iOS | **10.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) | [Nembrini Audio](https://appshunter.io/developer/1493296895) |

## What reviewers say

### Harmonizer audio effect

[App page](https://appshunter.io/ios/app/harmonizer-audio-effect/id1209475596)

This real-time audio effect app shifts pitch and adds harmonies to your original sound. It functions as an Audio Unit plugin or a standalone effect using your device's microphone or external audio interfaces. The pitch shifting preserves the original timing and tempo.

**Highlights:** Real-time pitch shifting, Two harmony voices, Smooth pitch shift controls, Adjustable voice volumes, Master reverb effect, Standalone mode via microphone

**Features:** Vision Pro support

**In-app purchases:** none


### Wah Pedal

[App page](https://appshunter.io/ios/app/wah-pedal/id6444608537)

This app emulates a classic Italian-made wah pedal, famous for its use in iconic rock songs. It can be used as a standalone application, an AudioUnit v3 effect, or an Inter-App Audio effect.

**Highlights:** Classic wah pedal emulation, Standalone app functionality, AudioUnit v3 effect, Inter-App Audio effect, Iconic rock tone reproduction

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Harmonizer audio effect free?

Harmonizer audio effect costs $1.99, with no in-app purchases.

### Is Wah Pedal free?

Wah Pedal is free to download, with no in-app purchases.

### Which has better reviews, Harmonizer audio effect or Wah Pedal?

Wah Pedal is rated higher. Harmonizer audio effect averages 3.0 out of 5 from 9 ratings, while Wah Pedal averages 4.2 from 11 ratings.

### Do Harmonizer audio effect or Wah Pedal have ads?

Neither Harmonizer audio effect nor Wah Pedal shows ads.

### Which is updated more often, Harmonizer audio effect or Wah Pedal?

Harmonizer audio effect ships an update every 8 months, and Wah Pedal every 47 months. Most recently, Harmonizer audio effect was updated on November 2, 2026 and Wah Pedal on November 11, 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.*