Comparison

Shoom Synthesizer vs GlitchScaper

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

Head to head
About

Shoom Synthesizer

This app is an audio playground featuring three identical synthesizers controlled by an expressive XY pad. It offers a wide pitch range and supports various scales, including microtonal options. Advanced features include MIDI input, extensive modulation sources, and built-in effects for creative sound design.

Highlights
  • Three independent synthesizers
  • Expressive XY pad control
  • Microtonal and xenharmonic scale support
  • MIDI note input (MPE)
  • Extensive modulation sources
  • Built-in stereo delay and reverb
Read full description

Shoom is an expressive XY pad synthesizer. Or, more precisely, three identical synthesizers in one app. It is capable of playing any pitch in the audible range and doesn’t necessarily limit you to a particular scale. Nevertheless, if you do want to use scales, Shoom can deliver anything from common 12-tone equal tempered to xenharmonic and microtonal. Features: • Three independent synthesizers • 8–20,000 Hz pitch range • Slide freely or snap notes to scale with adjustable glide rate • Set notes to infinite hold using a dedicated toggle • Microtonal and non-octave repeating scales support • MIDI note input (including MPE), CC control and clock sync • Optional remapping of MIDI notes to the pitches of the selected scale • Bluetooth MIDI support • Inter-App Audio support with main mix and individual synth outputs • Audiobus 3 support (including AB MIDI) • Ableton Link support • 120+ bundled presets • Import and export of presets and CC maps Synthesizer engine features: • Adjustable polyphony, up to 30 voices • Two oscillators with 4 waveforms and PWM, and one noise generator • Oscillator FM cross-modulation • 4 pole (24 dB/octave) resonant low pass filter with overdrive and pitch tracking • 2 variable slope ADSR envelopes for amplitude and filter cutoff • 2 LFOs with 9 waveforms, up to 3 out of 12 simultaneously assignable parameters, trigger and global running modes, fade-in and phase controls • Y-axis position / MIDI CC#74 as modulation source with up to 3 of 15 simultaneously assignable parameters • MIDI channel pressure / polyphonic aftertouch as modulation source with up to 3 of 15 simultaneously assignable parameters • MIDI velocity modulation of amplitude and filter envelopes • Note pan randomizer • Built-in stereo delay and reverb effects

About

GlitchScaper

Create unique glitchy patterns and soundscapes with a rhythm machine featuring six sound generators and a two-layer cycle sequencer. Explore random sequence and tone generation, advanced effects, and spatial audio processing.

Highlights
  • Six sound generators
  • Two-layer cycle sequencer
  • Random sequence and tone generation
  • Advanced effects and envelopes
  • Spatial audio processing
  • MIDI support
Features
Read full description

GlitchScaper is a rhythm machine with six sound generators, each controlled by a two-layer cycle sequencer, designed to easily create glitchy patterns and scapes. To quickly find new ideas, each generator has separate options for making sequences and tones. The parameters of the new sequences and tones are set randomly, but are guided by several user-defined options, which in outline define the steps of the sequence and the type of tone or noise. This allows you make a quick draft of a pattern and then simply tweak it to get the final sound. The advanced copy function gives you ability to quickly make a new preset by copying sequences and tones from existing ones. The tone generator makes bright and rich sounds based on 12 complex waveforms or various types of noise, and can also use an external input as a signal source. Effects transform the tone from smoothly varying to full of squeaks and rattles. Each effect is modulated by a special envelope generator with different shapes that change throughout the sequencer step. The sound generators have individual spatial effects, as well as a common reverb space for all generators that adds an ambient layer to the final mix. The final mix can be even brighter and heavy or pumping with the built-in harmonic exciter and bass enhancer. The intuitive interface and powerful sound design features make this application super convenient for creating your own, unique sound. GlitchScaper is great for creating simple beats with an interesting and unusual sound, but it was originally designed for digital distorted patterns with longer steps that blend perfectly with the rhythms of classic drum machines and sequencers. GlitchScaper is a universal application for iOS and macOS. It can work on iPhone and iPad as well as Mac / MacBook with M1 chip (and later). GlitchScaper works on iPhone and iPad standalone, as an Audio Unit or Inter-App Audio module, and supports Audiobus and Ableton Link. On MacOS, GlitchScaper can works both as a standalone application and as an Audio unit (AUv3) with DAWs and other hosts that support AUv3 plugins. All application features are available on iOS and macOS, including MIDI support (with a MIDI learn option) and audio unit parameters. GlitchScaper has a built-in detailed description of all parameters also available as PDF file on the application site. A brief overview: https://www.youtube.com/watch?v=_T50WVIPUPQ https://www.youtube.com/watch?v=AeF3oBoXp80 You can find more information on GlitchScaper and other experimental audio processing apps at: https://motion-soundscape.blogspot.com

Screenshots

GlitchScaper4 screens

Verdict

The call

The clearest difference is price: Shoom Synthesizer at $6.99 against GlitchScaper's $15.99. Shoom Synthesizer also leads on iOS requirement (9.0 vs 13.4). GlitchScaper's advantage is update cadence (every 4 months vs every 13 months) and device support (3 vs 1). On rating, review sentiment, ratings volume and ads 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

Shoom Synthesizer costs $6.99 and GlitchScaper $15.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Shoom Synthesizer against 4.8 for GlitchScaper. Both are backed by a comparable volume of ratings — 64 and 22 respectively. Written reviews are what separate them: 87% of Shoom Synthesizer's written reviews are positive against 91% of GlitchScaper's.

UpkeepUpdate frequency

Shoom Synthesizer ships an update every 13 months, GlitchScaper every 4 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Shoom Synthesizer versus GlitchScaper: the parameters behind the verdict, then further details
ParameterShoom SynthesizerGlitchScaper
Price$6.99 — better$15.99
Rating4.9 (64 ratings) — better4.8 (22 ratings)
Positive reviews86.7% of reviews90.9% of reviews — better
Number of ratings64 — better22
Update frequencyEvery 13 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS9.0 — better13.4
Further details — not scored
Size16 MB29 MB
Age rating4+4+
DeveloperYuri TurovIgor Vasiliev

Customer experience

Shoom Synthesizer

All ratings62 ratings
Positive96.8%
Neutral1.6%
Negative1.6%
Written reviews60 reviews
Positive86.7%
Neutral8.3%
Negative5.0%

GlitchScaper

All ratings22 ratings
Positive95.5%
Neutral0.0%
Negative4.5%
Written reviews11 reviews
Positive90.9%
Neutral0.0%
Negative9.1%

Bugs and requests

Shoom Synthesizer

Reported bugs

4 issues
  • Bugs encountered
  • Slight sensitivity issues
  • Quality loss when recording to AudioShare
  • Problem with background audio

Requested features

15 requests
  • AUV3 support
  • Multichannel AUV3 version
  • MIDI out functionality
  • MIDI note input
  • Record movements feature
Show 10 more
  • Play all 3 synth layers simultaneously with one finger movement
  • Arpeggiator
  • Sequencer
  • More LFOs
  • Additional effects
  • Expanded modulation routing
  • Free LFO
  • Full screen mode for performance
  • Cut audio switch
  • Respond to MIDI bank and program changes

GlitchScaper

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Shoom Synthesizer

No in-app purchases

None

GlitchScaper

No in-app purchases

Questions

Is Shoom Synthesizer free?
Shoom Synthesizer costs $6.99, with no in-app purchases.
Is GlitchScaper free?
GlitchScaper costs $15.99, with no in-app purchases.
Which has better reviews, Shoom Synthesizer or GlitchScaper?
Shoom Synthesizer is rated higher. Shoom Synthesizer averages 4.9 out of 5 from 64 ratings, while GlitchScaper averages 4.8 from 22 ratings.
Do Shoom Synthesizer or GlitchScaper have ads?
Neither Shoom Synthesizer nor GlitchScaper shows ads.
Which is updated more often, Shoom Synthesizer or GlitchScaper?
Shoom Synthesizer ships an update every 13 months, and GlitchScaper every 4 months. Most recently, Shoom Synthesizer was updated on October 29, 2026 and GlitchScaper on October 24, 2026.

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