SJ-SQUARE - Synthesizer is made and published by
Kouki Yoshimoto.
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The app name, icon, screenshots and description belong to Kouki Yoshimoto and are shown as
published on the App Store.
About SJ-SQUARE - Synthesizer
SJ-SQUARE - Synthesizer is a music app developed by Kouki Yoshimoto.
What is the rating of SJ-SQUARE - Synthesizer?
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Is SJ-SQUARE - Synthesizer free?
SJ-SQUARE - Synthesizer costs $0.49. The app size is 29.62 MB. The latest version available is 1.1. The last update was on September 3, 2026.
What are the requirements for SJ-SQUARE - Synthesizer?
The app has a content rating of Everyone. The app has been available on the App Store since August 2026.
Description by Kouki Yoshimoto(from the App Store)
SJ-SQUARE is a Super Jupiter–inspired analog polyphonic synthesizer for iPhone.
A warm brown chassis and amber glow meet a hands-on module layout: oscillators, filter, envelopes, LFO, and effects — built for playing, not menus.
FEATURES • Multi-oscillator panel with wave, octave, and level controls • Filter with resonance, envelope intensity, and key tracking • Filter envelope & amp controls for expressive shaping • LFO, OSC 2 detune / live layer, chorus, delay, and reverb • Unison (1–4 voices), tempo / tap, and scale snap • Full on-screen keyboard with octave shift & range minimap • MIDI input support for external controllers • Built-in presets ready to play • Landscape-optimized performance UI
Craft rich pads, biting leads, and stacked unison tones. Tweak cutoff and envelopes in real time, then perform with the keyboard or your MIDI gear.
From the maker of KG-SQUARE, JP-SQUARE, and DX-SQUARE — hardware-inspired synth apps for musicians who love hands-on sound design.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.