# Harmonizer audio effect — user reviews

> 13 indexed App Store user reviews of Harmonizer audio effect by Aleksandar Mlazev, rated 3.00/5 from 9 ratings.

- Source: https://appshunter.io/ios/app/harmonizer-audio-effect/id1209475596/reviews
- App overview in markdown: https://appshunter.io/ios/app/harmonizer-audio-effect/id1209475596.md
- Rating breakdown: 5★ 3 · 4★ 1 · 3★ 0 · 2★ 3 · 1★ 2

## Most critical reviews (10 lowest-rated)

### 1/5 — die

*2020-11-12*

what the hell??? are you actually kidding me? that £1.99 im giving you for being an idiot and poor human! #Charitydone

### 1/5 — Where is it then?

*2020-07-14*

I paid for an app... all I got was a little picture on my iPhone... no instructions how to work alleged app... and when trying to use it in garageband - garageband doesn’t know the app even exists!!
What is happening here?????

### 1/5 — Garbage

*2020-02-27*

App won’t even open, I feel robbed

### 1/5 — Does not work.

*2019-06-08*

Crashes every time earphones are connected. 

Would love a refund.

### 1/5 — Froud app

*2017-06-23*

This is not a actual audio extension app I have spent 160 INR but it is doing nothing

### 1/5 — doesn't work

*2017-04-29*

i select the plugin in garageband track settings.  it doesn't load.

### 2/5 — Wont receive midi

*2024-04-01*

I need this app to receive midi to either use a midi controller or an lfo...but midi is not working..( btw im using it with AUM as an au3fx)
Can you fix it? Otherwise i need to get a refund...thanks

### 2/5 — 現時点では使いものになりませんでした。

*2020-02-05*

レイテンシが少ないのは評価できますが、ピッチシフト自体が未完成で原音がエフェクト音に混ざって濁ります。
低い帯域が苦手なようでピッチシフト出来ていない場合もあります。
リングモジュレーターの亜種やグリッチ系のエフェクトとして割り切れば評価は変わるかもしれません。

### 2/5 — Terrible pitch tracking

*2019-08-25*

The shifted intervals are not at all correct. I dialed in a -5.0 semitone shift (down a perfect 4th), and it was giving me some kind of weird 6th below. Not useful for musical applications, maybe fun as a weird effect. Would like a refund.

### 2/5 — Noisy

*2017-09-01*

It adds too much noise to the mix to be useful. If the noise could be cleaned up, it might be a worthwhile unit.

## Most praised reviews (3 highest-rated)

### 5/5 — Another great Audio Unit

*2018-05-16*

Another Great unique effect. Perfect is boring and this Audio Unit effect is definitely NOT the same old boring pitch shifter. Great job!

### 5/5 — One to own

*2017-03-09*

Great to see the developer of this app responding, and adding functionality. Now this is well worth adding to the AU collection of any IOS music maker.

Nic

### 4/5 — Could Be A Little More Accurate, But Works Great!

*2023-12-28*

Please note you should use this app as a secondary guitar pedal within GarageBand for best results. (Unless you’re plugging into a real amp. Which, why would you? The feedback would be nuts) Not necessarily extremely accurate but MUCH better than any other pitch shifter app on the App Store for LIVE USE! All the other apps that do something similar don’t actually change the pitch. However, this one is different. Would recommend in the absence of any other suitable apps. 🔥👍🏻

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-14.*