# Harmonizr vs Solo Harmony

The clearest difference is review sentiment: Harmonizr at 74% against Solo Harmony's 20%. Harmonizr also leads on rating (4.2 vs 4.0) and ratings volume (27 vs 3). Solo Harmony's advantage is price ($0.99 vs $4.99) and iOS requirement (13.0 vs 18.6). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Harmonizr costs $4.99 and Solo Harmony $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Harmonizr holds the better App Store score, 4.2 against 4.0. That said, the two scores are not equally well evidenced: Harmonizr has 27 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 74% of Harmonizr's written reviews are positive against 20% of Solo Harmony's.

Harmonizr ships an update every 4 months, Solo Harmony every 7 months. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Harmonizr | Solo Harmony |
| --- | --- | --- |
| Price | $4.99 | **$0.99** |
| Rating | **[4.2 (27 ratings)](https://appshunter.io/ios/app/harmonizr/id1348742174/reviews)** | [4.0 (3 ratings)](https://appshunter.io/ios/app/solo-harmony/id6446134271/reviews) |
| Number of ratings | **27** | 3 |
| Positive reviews | **73.9% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Monetization | Paid | Paid |
| Size | 5 MB | 1 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Robbins](https://appshunter.io/developer/1348742173) | [Masanori Katsuta](https://appshunter.io/developer/320172788) |

## What reviewers say

### Harmonizr

[App page](https://appshunter.io/ios/app/harmonizr/id1348742174)

This app allows users to create vocal harmonies by singing along to a melody. It synthesizes up to three harmony voices in the user's own voice and can be controlled via MIDI input or used as an extension in other music production apps.

**Highlights:** Automatic vocal harmony synthesis, Real-time key center selection, MIDI keyboard integration, On-screen MIDI keyboard, Audio Unit (AUV3) extension support, Control via MIDI controller apps

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Solo Harmony

[App page](https://appshunter.io/ios/app/solo-harmony/id6446134271)

This app synthesizes harmony parts with your solo singing in real-time. Mix up to five harmony parts using an ad-lib keyboard and adjust pitch for chorus effects. Record and playback synthesized sounds, or use it for karaoke practice.

**Highlights:** Ad-lib Harmony Mix engine, Real-time multi-part mixing, Subtle pitch shift for chorus effect, Recording and playback, Input from microphone, files, and other apps, Karaoke practice mode

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Harmonizr free?

Harmonizr costs $4.99, with no in-app purchases.

### Is Solo Harmony free?

Solo Harmony costs $0.99, with no in-app purchases.

### Which has better reviews, Harmonizr or Solo Harmony?

Harmonizr is rated higher. Harmonizr averages 4.2 out of 5 from 27 ratings, while Solo Harmony averages 4.0 from 3 ratings.

### Do Harmonizr or Solo Harmony have ads?

Neither Harmonizr nor Solo Harmony shows ads.

### Which is updated more often, Harmonizr or Solo Harmony?

Harmonizr ships an update every 4 months, and Solo Harmony every 7 months. Most recently, Harmonizr was updated on October 19, 2026 and Solo Harmony on October 16, 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.*