KDJ vs BLEASS Voices
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KDJ
Create music on your smartphone with a portable audio workstation. Compose original songs or mix existing tracks using over 400 instruments and 200 preset samples. Ideal for beginners and on-the-go musicians.
- Compose music in 5 minutes
- Over 200 preset tracks
- Over 400 instruments
- Sequencer, Synthesizer, Sampler modes
- Song Mode for arrangement
- Personal DJ machine functionality
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Introducing the smartphone app of the world’s first portable audio workstation, the “KDJ-ONE”! Compose a song in just 5 minutes on your smartphone device! Compose your own music, or mix existing tracks and use it as your own personal “DJ Machine”. Utilize your imagination and ideas to create your own music as if you were in a professional studio. Boasting a selection of more than 200 preset tracks and over 400 instruments to choose from, you can compose your own music without a musical background. Create a short melody in 5 minutes, or use the mute function and song mode to mix and easily play music like a DJ. ◆Recommended For:◆ Beginners looking to create their own music! People who want to create music on the go! On tour, vacation… and more! People creating music for games and performances! People who want to experience the hardware version of the KDJ-ONE! ◆Functions: Preset Samples: Over 200 tracks! Preset Instruments & Sounds: Over 400 varieties! Modes: Sequencer (Insert different instruments and sounds into your composition) Synthesizer (Synthesize waveforms to form a timbre) Sampler (Record and modify sounds from external audio inputs) Song Mode (Arrange and playback your composition) ◆Languages: Japanese, English ◆Compatibility iOS 10.0 or later ◆URL KDJ-ONE Official Site: http://www.kdj-one.com This app is based on the hardware version of the “KDJ-ONE” and may differ with regards to development and functions.
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 price: KDJ at Free against BLEASS Voices's $19.99. KDJ also leads on update cadence (every 3 months vs every 12 months) and iOS requirement (10.0 vs 15.0). BLEASS Voices's advantage is ratings volume (77 vs 17). On rating, review sentiment, ads and in-app purchases 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
KDJ is free to download; BLEASS Voices costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.8 for KDJ against 4.8 for BLEASS Voices. Both are backed by a comparable volume of ratings — 17 and 77 respectively. Written reviews are what separate them: 67% of KDJ's written reviews are positive against 74% of BLEASS Voices's.
KDJ ships an update every 3 months, BLEASS Voices every 12 months. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.
| Parameter | KDJ | BLEASS Voices |
|---|---|---|
| Price | Free — better | $19.99 |
| Rating | 4.8 (17 ratings) — better | 4.8 (77 ratings) |
| Positive reviews | 66.7% of reviews | 73.7% of reviews — better |
| Number of ratings | 17 | 77 — better |
| Update frequency | Every 3 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 82 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | CyberStep, Inc. | BLEASS |
Customer experience
KDJ
BLEASS Voices
In-app purchases
KDJ
No in-app purchases
BLEASS Voices
No in-app purchases









