Comparison

BLEASS Dragonfly vs Mantis

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

Mantis

This audio plugin emulates a vintage 70s analog delay/echo unit, offering a warm, authentic sound. It features four echo taps, swell selectors, and a unique modulation section for chorus-like effects.

Highlights
  • Emulates rare 70s BBD delay/echo
  • Warm analog sound
  • Four echo taps
  • Four swell selectors
  • Rotafaze modulation section
  • Mimics tape echo wow/flutter
  • Chorus-delay effect
Features
Read full description

Mantis is a plugin that emulates a rare BBD (bucket-brigade device) delay/echo unit of the 70s, faithfully recreating its warm and analog sound. Available as AUv3 and Standalone. As the original unit, Mantis features an echo section with four taps and four swell selectors. It also features the rotafaze section, a modulation that can mimic the wow/flutter of a tape echo or turn the unit into a unique chorus-delay.

Screenshots

BLEASS Dragonfly4 screens
Mantis1 screens

Verdict

The call

The clearest difference is price: BLEASS Dragonfly at $7.99 against Mantis's $14.99. BLEASS Dragonfly also leads on iOS requirement (12.0 vs 14.0). Mantis's advantage is rating (5.0 vs 4.8) and update cadence (every 9 months vs every 24 months). 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

BLEASS Dragonfly costs $7.99 and Mantis $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Mantis holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 17 and 8 respectively.

UpkeepUpdate frequency

BLEASS Dragonfly ships an update every 24 months, Mantis every 9 months. The most recent releases landed on September 14, 2026 and September 10, 2026 respectively.

Scorecard4 real differences · 6 level
BLEASS Dragonfly versus Mantis: the parameters behind the verdict, then further details
ParameterBLEASS DragonflyMantis
Price$7.99 — better$14.99
Rating4.8 (17 ratings)5.0 (8 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings17 — better8
Update frequencyEvery 24 monthsEvery 9 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better14.0
Further details — not scored
Size27 MB10 MB
Age rating4+4+
DeveloperBLEASSAudioThing Ltd.

Customer experience

BLEASS Dragonfly

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

Mantis

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

BLEASS Dragonfly

No in-app purchases

None

Mantis

No in-app purchases

Questions

Is BLEASS Dragonfly free?
BLEASS Dragonfly costs $7.99, with no in-app purchases.
Is Mantis free?
Mantis costs $14.99, with no in-app purchases.
Which has better reviews, BLEASS Dragonfly or Mantis?
Mantis is rated higher. BLEASS Dragonfly averages 4.8 out of 5 from 17 ratings, while Mantis averages 5.0 from 8 ratings.
Do BLEASS Dragonfly or Mantis have ads?
Neither BLEASS Dragonfly nor Mantis shows ads.
Which is updated more often, BLEASS Dragonfly or Mantis?
BLEASS Dragonfly ships an update every 24 months, and Mantis every 9 months. Most recently, BLEASS Dragonfly was updated on September 14, 2026 and Mantis on September 10, 2026.

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