Comparison

BLEASS Dragonfly vs Scratch Hell VI

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

Head to head
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)

About

Scratch Hell VI

Read full description

Scratch experience you can intuitively enjoy with your fingertips Search for records, preview them, and build your collection The more you work, the more coins you earn, unlocking new experiences A unique world where music, labor, and culture blend together

Screenshots

BLEASS Dragonfly4 screens
Scratch Hell VI2 screens

Verdict

The call

The clearest difference is price: Scratch Hell VI at Free against BLEASS Dragonfly's $7.99. Scratch Hell VI also leads on update cadence (every 4 days vs every 24 months). BLEASS Dragonfly's advantage is ads (none vs shown) and device support (3 vs 1). On 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

CostPrice · In-app purchases · Ads · Monetization

Scratch Hell VI is free to download; BLEASS Dragonfly costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

BLEASS Dragonfly ships an update every 24 months, Scratch Hell VI every 4 days. The most recent releases landed on September 14, 2026 and September 21, 2026 respectively.

Scorecard5 real differences · 5 level
BLEASS Dragonfly versus Scratch Hell VI: the parameters behind the verdict, then further details
ParameterBLEASS DragonflyScratch Hell VI
Price$7.99Free — better
Rating4.8 (17 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings17 — better—
Update frequencyEvery 24 monthsEvery 4 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better16.0
Further details — not scored
Size27 MB11 MB
Age rating4+4+
DeveloperBLEASSkeiji shibuta

In-app purchases

None

BLEASS Dragonfly

No in-app purchases

None

Scratch Hell VI

No in-app purchases

Questions

Is BLEASS Dragonfly free?
BLEASS Dragonfly costs $7.99, with no in-app purchases.
Is Scratch Hell VI free?
Scratch Hell VI is free to download, with no in-app purchases.
Do BLEASS Dragonfly or Scratch Hell VI have ads?
Scratch Hell VI shows ads; BLEASS Dragonfly does not.
Which is updated more often, BLEASS Dragonfly or Scratch Hell VI?
BLEASS Dragonfly ships an update every 24 months, and Scratch Hell VI every 4 days. Most recently, BLEASS Dragonfly was updated on September 14, 2026 and Scratch Hell VI on September 21, 2026.

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