Harmonizr vs BLEASS Delay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Harmonizr
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.
- 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
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Harmonizr is a vocal harmonizer offering a unique and fun user interface. Plug in a pair of headphones and sing a melody, tapping the correct key center buttons, and Harmonizr will follow, synthesizing up to three voices of automatic harmony in your own voice. Plug in a MIDI keyboard, or use the on-screen one, and you can sing harmony like Imogen Heap or Jacob Collier, matching every note you play. Harmonizr also can also be used as an Audio Unit (AUV3) extension within other apps, such as GarageBand, AUM, or Cubasis, and can be controlled by MIDI controller apps like SoundPrism.
BLEASS Delay
Enhance your audio mixes with a versatile delay and echo effect. This tool offers deep control over sound character with integrated frequency shifting and dual filters. Create dynamic soundscapes and classic modulation effects with its three LFOs.
- Adds depth and movement to mixes
- Integrated frequency shifter
- Dual filter for sound control
- Three LFOs for modulation
- Creates chorus and flanging effects
- Generates soundscapes and effects
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BLEASS Delay is the ideal tool for adding depth, movement and interest to your mixes. No matter what style of music you are producing and what instrumentation you are working with, the versatility and ease-of-use of BLEASS Delay helps you achieve perfect results with the minimal of fuss. Echoes are just the starting point for BLEASS Delay. The integrated frequency shifter and dual filter allow deep control over the character and sound of the generated repeats, allowing you to achieve with one plugin sound effects that may otherwise require a complete plugin stack and complex routing. BLEASS Delay also includes three LFOs, one each for the delay engine, the frequency shifter and the filter. As well as allowing the plugin to create classic modulation effects such as chorus and flanging, the dedicated LFOs are ideal for creating exciting sound effects and epic, constantly-shifting soundscapes. BLEASS Delay App is an AUv3 plugin. A Desktop compatible plugin (VST3 / AU / AAX) is also available for Windows and macOS. More information on https://www.bleass.com/delay/
Screenshots
Verdict
The clearest difference is rating: BLEASS Delay at 4.7 against Harmonizr's 4.2. BLEASS Delay also leads on iOS requirement (11.0 vs 18.6). Harmonizr's advantage is chart position (#153 vs unranked) and price ($4.99 vs $6.99). On review sentiment, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Harmonizr costs $4.99 and BLEASS Delay $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BLEASS Delay holds the better App Store score, 4.7 against 4.2. Both are backed by a comparable volume of ratings — 27 and 50 respectively. Written reviews point the same way: 74% of Harmonizr's written reviews are positive against 81% of BLEASS Delay's.
Harmonizr ships an update every 4 months, BLEASS Delay every 6 months. The most recent releases landed on October 14, 2026 and September 20, 2026 respectively.
| Parameter | Harmonizr | BLEASS Delay |
|---|---|---|
| Price | $4.99 — better | $6.99 |
| Rating | 4.2 (27 ratings) | 4.7 (50 ratings) — better |
| Positive reviews | 73.9% of reviews | 81.3% of reviews — better |
| Number of ratings | 27 | 50 — better |
| Update frequency | Every 4 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #153 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 11.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthew Robbins | BLEASS |
Customer experience
Harmonizr
BLEASS Delay
In-app purchases
Harmonizr
No in-app purchases
BLEASS Delay
No in-app purchases
