Comparison

shapesynth vs BLEASS Reverb

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

Head to head
About

shapesynth

Create unique retro-inspired sounds by drawing oscillator waveforms. This polyphonic synthesizer offers extensive modulation options, built-in effects, and recording capabilities. Seamlessly integrate with other music apps and hardware for a versatile creative experience.

Highlights
  • Draw custom oscillator waveforms
  • 16-voice polyphony
  • Arpeggiator and stereo delay
  • Resonant filter
  • Parameter modulation via keyboard, MPE, accelerometer
  • Tape recorder with infinite overdubs
  • Inter-app audio and AUv3 support
Features
Read full description

Shape is a polyphonic synthesiser allowing the user to draw the shape of the oscillator waveform. The first half of the oscillator is represented by 32 blocks and the second half is its mirror, generating all sorts of possible raw retroish sounds. 16 pages per oscillator allows to interpolate between different shapes. Add effects like arpeggio, stereo delay and a resonant filter and record your sounds on a classic tape. Modulate any parameter with keyboard, MIDI MPE or the device accelerometer. Connect to other apps with AudioBus, IAA, AUv3 and midi. +++ 16 voice polyphony +++ 2 oscillators, draw your own shape +++ 3 oscillator mixing functions (add, subtract or multiply) +++ Lfo modulation with ADSR: envelope, pitch, duty cycle, square, page or filter +++ Record on tape with infinite overdubs (save, load, import, export) +++ Arpeggiator +++ Stereo delay +++ Resonant filter (low, band and high pass) +++ Modulate any parameter using keyboard, MIDI MPE or accelerometer (Built in or Sphero) +++ Mini linear sequencer with euclidean rhythm +++ On screen 25 key stylophone style keyboard +++ AudioBus, Inter App Audio and AUv3 +++ Ableton link or AUv3 host sync +++ CoreMIDI, IAA MIDI, Bluetooth MIDI, limited MPE and MIDI out +++ Audio Paste, files app drag’n drop or open with

About

BLEASS Reverb

This app offers a unique reverb effect that goes beyond traditional acoustic simulation. It allows real-time mutation and warping of sound spaces with intuitive controls, opening up new sonic possibilities for musicians.

Highlights
  • Mutable reverb generator
  • Real-time sound warping
  • Freeze mode
  • Built-in ducker
  • AUv3 plugin support
  • Intuitive interface
Read full description

Reverbs let us simulate acoustic spaces, but with BLEASS Reverb you can mutate and warp that space in realtime with tactile, hands-on controls. If what you need is great-sounding acoustic simulation, BLEASS Reverb is happy to help. But BLEASS Reverb goes far beyond conventional reverb processors. Its mutable reverb generator, freeze mode and built-in ducker open doors to whole new worlds of sonic possibilities for you to explore. BLEASS Reverb's clear, colourful and intuitive interface lets you focus on the important details of your sound without overwhelming you with countless arcane options and settings. And your iOS device won't be overwhelmed either, thanks to BLEASS Reverb's super-efficient engine. FEATURES • Input section with gain, pre-delay and a high-pass or low-shelf filter • Reverb engine with size, length, HF damping and modulation (rate and amount) • Freeze mode • Transform panel: frequency shifter & wave shaper on an X/Y pad to morph the reverb in realtime • Built-in side-chained ducker with threshold, attack and release • Dry/Wet control • Preset manager with a preset generator • Clear single-screen interface on iPad and iPhone WORKS WHERE YOU MAKE MUSIC BLEASS Reverb is an AUv3 plugin. Load it in GarageBand, Logic Pro, AUM, NanoStudio, Koala Sampler, Loopy Pro or any other AUv3-compatible host. A standalone app is also included. BLEASS Reverb is also available for Desktop (VST3 / AU / AAX) on macOS and Windows. More information at www.bleass.com/reverb

Screenshots

shapesynth4 screens
BLEASS Reverb4 screens

Verdict

The call

The clearest difference is update cadence: shapesynth at every 2 months against BLEASS Reverb's every 10 months. shapesynth also leads on iOS requirement (9.0 vs 15.0). BLEASS Reverb's advantage is review sentiment (80% vs 65%) and price ($3.99 vs $4.99). On rating, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

shapesynth costs $4.99 and BLEASS Reverb $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

shapesynth holds the better App Store score, 4.9 against 4.8. Both are backed by a comparable volume of ratings — 24 and 32 respectively. Written reviews complicate that: 65% of shapesynth's written reviews are positive against 80% of BLEASS Reverb's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

shapesynth ships an update every 2 months, BLEASS Reverb every 10 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 6 level
shapesynth versus BLEASS Reverb: the parameters behind the verdict, then further details
ParametershapesynthBLEASS Reverb
Price$4.99$3.99 — better
Rating4.9 (24 ratings) — better4.8 (32 ratings)
Positive reviews65.1% of reviews80.0% of reviews — better
Number of ratings2432 — better
Update frequencyEvery 2 months — betterEvery 10 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size8 MB20 MB
Age rating4+4+
DeveloperErik SigthBLEASS

Customer experience

shapesynth

All ratings24 ratings
Positive95.8%
Neutral4.2%
Negative0.0%
Written reviews43 reviews
Positive65.1%
Neutral9.3%
Negative25.6%

BLEASS Reverb

All ratings32 ratings
Positive90.6%
Neutral6.3%
Negative3.1%
Written reviews15 reviews
Positive80.0%
Neutral13.3%
Negative6.7%

In-app purchases

None

shapesynth

No in-app purchases

None

BLEASS Reverb

No in-app purchases

Questions

Is shapesynth free?
shapesynth costs $4.99, with no in-app purchases.
Is BLEASS Reverb free?
BLEASS Reverb costs $3.99, with no in-app purchases.
Which has better reviews, shapesynth or BLEASS Reverb?
shapesynth is rated higher. shapesynth averages 4.9 out of 5 from 24 ratings, while BLEASS Reverb averages 4.8 from 32 ratings.
Do shapesynth or BLEASS Reverb have ads?
Neither shapesynth nor BLEASS Reverb shows ads.
Which is updated more often, shapesynth or BLEASS Reverb?
shapesynth ships an update every 2 months, and BLEASS Reverb every 10 months. Most recently, shapesynth was updated on November 1, 2026 and BLEASS Reverb on November 6, 2026.

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