# Harmonizr vs BLEASS Filter

The clearest difference is rating: BLEASS Filter at 5.0 against Harmonizr's 4.2. BLEASS Filter also leads on price ($3.99 vs $4.99) and iOS requirement (11.0 vs 18.6). Harmonizr's advantage is update cadence (every 4 months vs every 18 months). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Harmonizr costs $4.99 and BLEASS Filter $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BLEASS Filter holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 27 and 22 respectively. Written reviews point the same way: 74% of Harmonizr's written reviews are positive against 80% of BLEASS Filter's.

Harmonizr ships an update every 4 months, BLEASS Filter every 18 months. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Harmonizr | BLEASS Filter |
| --- | --- | --- |
| Price | $4.99 | **$3.99** |
| Rating | [4.2 (27 ratings)](https://appshunter.io/ios/app/harmonizr/id1348742174/reviews) | **[5.0 (22 ratings)](https://appshunter.io/ios/app/bleass-filter/id1464916830/reviews)** |
| Number of ratings | **27** | 22 |
| Positive reviews | 73.9% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 18 months |
| Monetization | Paid | Paid |
| Size | 5 MB | 28 MB |
| Requires iOS | 18.6 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Robbins](https://appshunter.io/developer/1348742173) | [BLEASS](https://appshunter.io/developer/1220444177) |

## 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


### BLEASS Filter

[App page](https://appshunter.io/ios/app/bleass-filter/id1464916830)

This app offers a stereo dynamic filter effect inspired by vintage analog synthesizers. It features an envelope follower and LFO for dynamic musical movement, providing a tactile user experience with detailed visual feedback.

**Highlights:** Stereo dynamic filter effect, Vintage analog synth inspiration, Envelope follower, LFO with sync to beat, Intuitive tactile interface, Detailed visual feedback

**In-app purchases:** none


## Frequently asked questions

### Is Harmonizr free?

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

### Is BLEASS Filter free?

BLEASS Filter costs $3.99, with no in-app purchases.

### Which has better reviews, Harmonizr or BLEASS Filter?

BLEASS Filter is rated higher. Harmonizr averages 4.2 out of 5 from 27 ratings, while BLEASS Filter averages 5.0 from 22 ratings.

### Do Harmonizr or BLEASS Filter have ads?

Neither Harmonizr nor BLEASS Filter shows ads.

### Which is updated more often, Harmonizr or BLEASS Filter?

Harmonizr ships an update every 4 months, and BLEASS Filter every 18 months. Most recently, Harmonizr was updated on October 19, 2026 and BLEASS Filter on October 7, 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.*