Comparison

iVoxel vs BLEASS Dragonfly

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iVoxel

This app transforms your voice into a singing machine using a powerful vocoder and synthesizer. It allows real-time voice manipulation, pitch correction, and the creation of unique vocal effects from recorded speech.

Highlights
  • Real-time voice analysis and resynthesis
  • 20+2 Channel vocoder
  • Pitch follower and automatic tuning
  • Voice spectrum recorder (voxels)
  • Included prerecorded voxels
  • Live keyboard playback of vocoded voice
  • Polyphonic synthesizer with analog waves
Features
Read full description

iVoxel is not only an amazingly sounding vocoder - the unique concept of iVoxel turns this vocoder into a singing machine. iVoxel is a combination of a voice optimized synthesizer and a vocoder. The vocoder part is based on the Matrix vocoder from VirSyn used by many famous artists - one of them the well known german group Kraftwerk. The channel filters used by iVoxel are based on the Sennheiser Vocoder VSM201 resulting in a rich and fat analogue sound characteristic. The pitch follower and automatic tuning let you sing correct to a selectable scale. You can use iVoxel in many different ways: As a realtime vocoder talking into the microphone while playing tunes on the keyboard. The sound character of your voice can be changed in many different aspects like pitch, gender or breath noise. Use it to sing over your favorite iTunes song ! Record the analyzed spectrum of phrases and words from your own voice. Then use this voxel to play with your own voice on the keyboard or with the build in sequencer. Nearly 300 hundred prerecorded voxels are already included. iVoxel is Audiobus compatible and can be used in the Input, Filter and Output slots in the Audiobus signal chain. The carrier signal and the vocal signal can now be fed by any Audiobus compatible Apps. The output of your creations can be recorded to an audio file which you can use with other Apps and programs for further processing. Features: • Realtime analysis/resynthesis of your voice • 20+2 Channel vocoder • Pitch Follower and automatic tuning correction to selectable scale • Realtime pitch to MIDI Note converter • Voice spectrum recorder (voxels) • Nearly 300 prerecorded voxels included • Play your vocoded voice live on keyboard. Drag for slides and vibrato.  • Polyphonic sequencer for notes & lyrics • Voice optimized polyphonic synthesizer with up to 64 analog waves • Time warping of voxels • Gender changer • Breath noise • Pitch vibrato with delay • Hi-end Reverb and Chorus/Delay effects • Export/Import of projects and voxels • Export of audio recordings • Upload recordings to SoundCloud • Copy audio recordings to Clipboard • Virtual MIDI and Background audio • flexible MIDI control for Gender and Vibrato • compatible to Korg/WIST standard • CoreMIDI • Audiobus 2 support (Input/Filter/Output) with state saving (requires iOS 7 or newer)

About

BLEASS Dragonfly

This audio effect plugin offers a unique approach to tremolo, allowing music producers to add dynamic modulation to synths, vocals, and melodies. It syncs tremolo effects with input frequencies, MIDI notes, or sidechained signals for creative sonic textures.

Highlights
  • Pitch tracking for self or sidechain modes
  • MIDI input for precise triggering
  • Manual rate and amplitude control
  • Adjustable smoothing, stereo, attack, and release
  • Wild mode for saturation and waveshaping
  • Animated visualization of effect rate
Read full description

BLEASS Dragonfly is a completely new approach to tremolo effect which brings new sonic possibilities to all music producers. Make your synths, voices or any melody “vibrate” in correspondence with its own frequencies, or with external basses and leads! Just like in Billie Eilish’s song “Xanny”, Dragonfly helps you achieve the same effect as when the voice gets modulated by a heavy bass. BLEASS Dragonfly automatically syncs the tremolo effect applied on a track using various triggers: First, you can use the pitch tracking module on either the input audio track (“self mode”) or a sidechained audio track (“sidechain mode”). You also can use the midi input to trigger Dragonfly with accuracy: the tremolo will automatically sync with the notes’ frequencies. Finally, a manual mode allows you to set a fixed frequency. Then you can finetune your settings by adjusting the fine, factor, smoothness, stereo, attack & release. The “Wild” mode applies a waveshaper to the signal to produce a subtle saturation. The final tremolo effect rate is mirrored by the flapping wings of the Dragonfly. BLEASS Dragonfly is also available for Mac & Windows (AU / VST3) https://www.bleass.com/dragonfly/ ________________________________________________ Technical description: SOURCE stage: - MANUAL: Tremolo rate is set by the Rate knob. Tremolo amplitude is set by the Amplitude knob. - MIDI: Tremolo rate corresponds to the rate of the lowest MIDI note received by the plugin. Tremolo amplitude corresponds to the velocity value of this note. - SELF: Pitch tracking on the input signal gives the tremolo rate. Tremolo amplitude matches the input signal’s amplitude. - SIDECHAIN: Pitch tracking on the sidechain signal gives the tremolo rate. Tremolo amplitude matches the sidechain signal’s amplitude. - SOURCE CHANNEL: Sets the channel to be analysed for SELF and SIDECHAIN modes. - AMPLITUDE: Sets tremolo amplitude in MANUAL mode. - GAIN: Sets the input gain in MIDI, SELF and SIDECHAIN modes. DRAGONFLY stage: - RATE: Sets tremolo rate in MANUAL mode. - FINE: Offsets the detected pitch value by +/- 0.5 semitone in MIDI, SELF and SIDECHAIN mode. - FACTOR: Detected or set rate is multiplied by this factor to give the final tremolo rate. - SMOOTH: Sets the smoothing duration of rate variations. - STEREO: Sets phase difference between left and right channels. - ATTACK: Attack duration of the effect. - RELEASE: Release duration of the effect. - MODE: SIMPLE is a basic tremolo. WILD uses complex waveshaping for warm and saturated effect. - WILDNESS: Sets waveshaping strength in WILD mode. - VISUALISATION: Dragonfly wings are animated to match the rate and amplitude of the effect. Green label on the left indicates the input MIDI note and rate. Blue label on the right indicates the applied MIDI note and Rate. MIX stage: - GAIN: Output gain of the effect. - DRY/WET: Dry/wet balance. NOTE: This is an AUv3 effect which needs a compatible host that ideally offers audio sidechain or MIDI FX routing (such as AUM, Cubasis 3 or Logic)

Screenshots

iVoxel1 screens
BLEASS Dragonfly4 screens

Verdict

The call

The clearest difference is review sentiment: BLEASS Dragonfly at 100% against iVoxel's 55%. BLEASS Dragonfly also leads on rating (4.8 vs 3.3). iVoxel's advantage is update cadence (every 5 months vs every 24 months) and price ($6.99 vs $7.99). On ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

iVoxel costs $6.99 and BLEASS Dragonfly $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BLEASS Dragonfly holds the better App Store score, 4.8 against 3.3. Both are backed by a comparable volume of ratings — 17 and 17 respectively. Written reviews point the same way: 55% of iVoxel's written reviews are positive against 100% of BLEASS Dragonfly's.

UpkeepUpdate frequency

iVoxel ships an update every 5 months, BLEASS Dragonfly every 24 months. The most recent releases landed on September 21, 2026 and September 14, 2026 respectively.

Scorecard4 real differences · 6 level
iVoxel versus BLEASS Dragonfly: the parameters behind the verdict, then further details
ParameteriVoxelBLEASS Dragonfly
Price$6.99 — better$7.99
Rating3.3 (17 ratings)4.8 (17 ratings) — better
Positive reviews54.9% of reviews100.0% of reviews — better
Number of ratings1717
Update frequencyEvery 5 months — betterEvery 24 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size46 MB27 MB
Age rating4+4+
DeveloperHarry GohsBLEASS

Customer experience

iVoxel

All ratings17 ratings
Positive52.9%
Neutral5.9%
Negative41.2%
Written reviews204 reviews
Positive54.9%
Neutral14.7%
Negative30.4%

BLEASS Dragonfly

All ratings17 ratings
Positive88.2%
Neutral11.8%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

iVoxel

Reported bugs

14 issues
  • App crashes on launch or during use
  • Hangs when changing presets or settings
  • Random background noise and clicking sounds
  • Microphone input not recognized or working intermittently
  • No sound output in standalone or Audiobus mode
Show 9 more
  • Touch controls unresponsive in certain screen areas
  • Import/export functionality broken
  • Sequencer not playing sounds or producing audio
  • Recording functionality causes crashes
  • Compatibility issues with iOS 18, iOS 17, and older versions
  • Audiobus carrier wave option not appearing
  • MIDI stuck notes and keyboard responsiveness issues
  • Display rendering issues on certain devices
  • Audio routing not working with external interfaces

Requested features

14 requests
  • AU v3 plugin support for modern DAW integration
  • Audiobus 3 and IAA (Inter-App Audio) support
  • Core MIDI support beyond Akai controllers
  • Lightning to USB audio interface compatibility
  • Custom word/text input for voice synthesis
Show 9 more
  • Metronome for sequencer alignment
  • Direct audio export and playback within app
  • Improved sequencer with copy/paste/undo functionality
  • Bluetooth audio output support
  • Sync options for modern music production
  • Better microphone input handling
  • Volume normalization and better level controls
  • Ability to delete recorded voxels
  • More comprehensive tutorial and help system

BLEASS Dragonfly

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

iVoxel

No in-app purchases

None

BLEASS Dragonfly

No in-app purchases

Questions

Is iVoxel free?
iVoxel costs $6.99, with no in-app purchases.
Is BLEASS Dragonfly free?
BLEASS Dragonfly costs $7.99, with no in-app purchases.
Which has better reviews, iVoxel or BLEASS Dragonfly?
BLEASS Dragonfly is rated higher. iVoxel averages 3.3 out of 5 from 17 ratings, while BLEASS Dragonfly averages 4.8 from 17 ratings.
Do iVoxel or BLEASS Dragonfly have ads?
Neither iVoxel nor BLEASS Dragonfly shows ads.
Which is updated more often, iVoxel or BLEASS Dragonfly?
iVoxel ships an update every 5 months, and BLEASS Dragonfly every 24 months. Most recently, iVoxel was updated on September 21, 2026 and BLEASS Dragonfly on September 14, 2026.

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