Harmonizer audio effect vs BLEASS Voices
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Harmonizer audio effect
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.
- Real-time pitch shifting
- Two harmony voices
- Smooth pitch shift controls
- Adjustable voice volumes
- Master reverb effect
- Standalone mode via microphone
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Harmonizer is real time audio pitch shifter effect that can mix harmonies into the original signal or run as realtime pitch shifter. The app works as an Audio Unit plugin and can also be used as stand alone real time effect via the device microphone or using iRig or similar device. The pitch shifting does NOT affect timing so the tempo stays the same. Features: - 2 harmony voices - smooth pitch shift controls - half tones and cents - dry volume (original voice) - efx 1 volume (pitch shifted voice 1 volume) - efx 2 volume (pitch shifted voice 2 volume) - reverb (master reverb) - EFX on/off button (in stand alone mode) If you play acoustic instrument you can use headphones without a mic and put the phone close to your instrument so the app will work as realtime effect. Now you can play and sing with harmonies.
BLEASS Voices
This audio plugin transforms and harmonizes vocals and monophonic sources with up to 12 pitch-shifted voices. It offers independent control over pitch, formant, and placement, with MIDI and MPE support for expressive performances. Features include synth-style modulators, intelligent pitch correction, and individual voice outputs.
- 12 pitch-shifted voices
- Independent voice control
- MIDI and MPE support
- Synth-style modulators (LFOs, envelope, sequencer)
- Intelligent pitch correction
- Individual voice outputs
- Real-time mode for live performance
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BLEASS Voices is a vocal processing effect for pitching, transforming, doubling and harmonizing vocals and other sources. With 12 pitch-shifted voices and detailed control over pitch, formant, tone, width and placement, it can move from subtle vocal enhancement to dense harmonies and radical transformations. Four harmonized voices can be transposed independently by up to one octave in either direction or fixed to a chosen pitch. The remaining eight voices can be triggered via MIDI, turning incoming audio into a playable vocal instrument. MPE support brings expressive control to performance, making it possible to create vocal chords, realistic glides, trills and other pitch-based articulations directly from a compatible controller. Two LFOs, an envelope follower and a pattern sequencer add modulation and movement, extending BLEASS Voices beyond conventional harmonizing into more synth-like vocal processing. All voices can use intelligent pitch correction based on a selected key and scale. Each voice also has an independent output bus, allowing individual voices to be mixed and processed separately. BLEASS Voices works with fundamental frequencies from 66 Hz to 5.2 kHz, making it suitable not only for vocals but also for a wide range of instruments. A Real-Time mode provides the low latency required for live performance and recording. BLEASS Voices can be used as an AUv3 plugin on iPhone and iPad. BLEASS Voices is also available for Windows, macOS and Linux. More information, technical specifications and tutorials available on https://www.bleass.com/voices/
Screenshots
Verdict
The clearest difference is review sentiment: BLEASS Voices at 74% against Harmonizer audio effect's 23%. BLEASS Voices also leads on rating (4.8 vs 3.0) and ratings volume (77 vs 9). Harmonizer audio effect's advantage is price ($1.99 vs $19.99) and iOS requirement (10.0 vs 15.0). On update cadence, ads, in-app purchases and monetization model 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
Harmonizer audio effect costs $1.99 and BLEASS Voices $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BLEASS Voices holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: BLEASS Voices has 77 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 23% of Harmonizer audio effect's written reviews are positive against 74% of BLEASS Voices's.
Harmonizer audio effect ships an update every 8 months, BLEASS Voices every 12 months. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.
| Parameter | Harmonizer audio effect | BLEASS Voices |
|---|---|---|
| Price | $1.99 — better | $19.99 |
| Rating | 3.0 (9 ratings) | 4.8 (77 ratings) — better |
| Positive reviews | 23.1% of reviews | 73.7% of reviews — better |
| Number of ratings | 9 | 77 — better |
| Update frequency | Every 8 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 14 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Aleksandar Mlazev | BLEASS |
Customer experience
Harmonizer audio effect
BLEASS Voices
In-app purchases
Harmonizer audio effect
No in-app purchases
BLEASS Voices
No in-app purchases
Questions
Is Harmonizer audio effect free?
Is BLEASS Voices free?
Which has better reviews, Harmonizer audio effect or BLEASS Voices?
Do Harmonizer audio effect or BLEASS Voices have ads?
Which is updated more often, Harmonizer audio effect or BLEASS Voices?
Other comparisons
