Shoom Synthesizer vs sinusedo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
sinusedo
This app is a versatile sinewave synthesizer available as a standalone application and AUv3 plugin. It offers two independent keyboards with extensive control over note parameters, polyphony, and modulation, supporting MIDI input for external control.
- Dual independent keyboards
- Microtonal tuning
- Ring modulator per voice
- Adjustable polyphony (up to 144 voices)
- MIDI input support
- Note deviation display (cents)
- Glide and velocity control
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'sinusedo' is a sinewave synthesizer in standalone and AUv3 formats. It features two independent keyboards with: • 4 – 72 keys (voices, steps) per octave, each with its own ring modulator • maximum polyphony equal to the number of voices; max polyphony is 144 voices • 1 – 4 octave range, covering the frequency range of about 8 – 4200 Hz • display with note number (from C), note name, frequency (in Hz), and deviation from 12-TET (in cents) • two sections per keyboard: upper for non-sustained notes, gliding, and velocity; lower for sustained notes and modulation rate • mute button to stop/start all sound • delete/panic button to erase all notes • glide button for smooth sweeps across keyboard frequency range • modulation on/off button • slider to set initial velocity and modulation levels • slider to change velocity and modulation rates for all notes on the keyboard proportionally and to show current velocity and mod rate levels • button to toggle keyboard visibility. sinusedo supports MIDI input from external sources to control each keyboard independently. Supported devices: iPad, iPhone
Screenshots
Verdict
The clearest difference is update cadence: sinusedo at weekly against Shoom Synthesizer's every 13 months. sinusedo also leads on price ($3.99 vs $6.99) and review sentiment (100% vs 87%). Shoom Synthesizer's advantage is ratings volume (64 vs 7) and iOS requirement (9.0 vs 15.0). On rating, 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
Shoom Synthesizer costs $6.99 and sinusedo $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.9 for Shoom Synthesizer against 4.7 for sinusedo. That said, the two scores are not equally well evidenced: Shoom Synthesizer has 64 ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 87% of Shoom Synthesizer's written reviews are positive against 100% of sinusedo's.
Shoom Synthesizer ships an update every 13 months, sinusedo weekly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Shoom Synthesizer | sinusedo |
|---|---|---|
| Price | $6.99 | $3.99 — better |
| Rating | 4.9 (64 ratings) — better | 4.7 (7 ratings) |
| Positive reviews | 86.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 64 — better | 7 |
| Update frequency | Every 13 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 16 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuri Turov | Alexey Nadzharov |
Customer experience
Shoom Synthesizer
sinusedo
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
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- 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
sinusedo
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Shoom Synthesizer
No in-app purchases
sinusedo
No in-app purchases









