# LuSID Synthesizer — Synthwave SID-inspired synth > Intuitive synthwave synthesizer with sequencer, effects, and recording. (iPhone/iPad app by Lukasz Pomianek.) - Source: https://appshunter.io/ios/app/lusid-synthesizer/id6764299166 (this page in markdown: same URL + `.md`) - Developer: [Lukasz Pomianek](https://appshunter.io/developer/1890450297) - Category: Music - Price: Free - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 18.4 · 3 MB - Languages: American English - Released: 2026-04-30 - Data updated: 2026-08-13 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/lusid-synthesizer/id6764299166/reviews.md ## What is LuSID Synthesizer? LuSID Synthesizer — a SID-inspired SwiftUI synth with a synthwave heart. Eight-voice polyphony with detune-and-spread unison, audio-rate filter envelope, classic SID-flavoured ring modulation and pulse-width modulation, plus a built-in 4 to 64-step sequencer and tape-style delay, chorus, distortion, and lush reverb. Wrapped in a neon Liquid-Glass interface that matches what's playing — magenta sequencer steps that bloom lime when active, a gradient cyan oscilloscope that traces your output in real time, and a synthwave horizon that rolls under the step grid. FOUR TABS SYNTH — oscillator (triangle, sawtooth, square, noise) with PolyBLEP anti-aliasing. Custom Cytomic state-variable filter (low-pass, high-pass, band-pass, notch) with drive and self-oscillating resonance. Audio-rate filter envelope. LFO with pitch, cutoff, PWM, and pan destinations. Ring modulation. Distortion (lo-fi, broken, cubed, bitcrush, mangled). Chorus. Delay. Reverb (plate, room, hall, cathedral). Big rotary knobs, all the modulation routing visible. SEQUENCER — 4 to 64 steps. Tap-to-place notes with the chromatic note picker. Per-step ratchets (1x, 2x, 3x) and held-legato notes for gate-length variation. Tempo from 60 to 440 BPM, gate length 5 to 150 percent of step. KEYBOARD — two-octave touch piano with multi-touch chords and slide-to-play, velocity slider, octave switcher (C2 to C6). RECORD — capture everything you hear (filter, drive, delay, reverb, the full chain) to a WAV file in the app's Documents folder, then share via the iOS share sheet. 5 to 60 seconds per take. LuSID is built for the moments when you want to make sound, not learn software. No menus, no preset hunting, no tutorials. Tap a step, sweep a knob, hold a key. The app treats every parameter as performance. NO ACCOUNTS. NO ANALYTICS. NO TRACKING. NO ADS. LuSID does not collect any data, make any network requests, or contain any third-party SDKs. Recordings stay on your device until you choose to share them. ## Key features - Eight-voice polyphony with unison - Audio-rate filter envelope - Built-in 4-64 step sequencer - Tape-style delay, chorus, distortion, reverb - Neon Liquid-Glass interface - Record and share WAV files ## Frequently asked questions about LuSID Synthesizer ### What is LuSID Synthesizer? LuSID Synthesizer is a SwiftUI-based synthesizer designed for creating synthwave music. It offers eight-voice polyphony, a versatile filter, a built-in sequencer, and a suite of audio effects. ### Does LuSID Synthesizer have ads? No, LuSID Synthesizer is completely ad-free. The developer explicitly states that the app contains no advertisements, ensuring an uninterrupted creative experience. ### What devices does LuSID Synthesizer support? LuSID Synthesizer is currently supported on iPhone. It is designed to run on iOS devices. ### How often is LuSID Synthesizer updated? The latest version of LuSID Synthesizer is 1.1, last updated on July 1, 2026. This indicates a recent update, suggesting ongoing development and support. ### Can I record and save my music with LuSID Synthesizer? Yes, LuSID Synthesizer includes a RECORD tab that allows you to capture everything you hear as a WAV file. These recordings are saved to the app's Documents folder and can be shared via the iOS share sheet. ### What is the age rating for LuSID Synthesizer? LuSID Synthesizer has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions. ### Does LuSID Synthesizer collect user data? No, LuSID Synthesizer prioritizes user privacy. It does not collect any data, make network requests, or contain third-party SDKs, and all recordings remain on the device until shared. ### What are the key sound design features in LuSID Synthesizer? LuSID Synthesizer features a triangle, sawtooth, square, and noise oscillator with PolyBLEP anti-aliasing. It also includes a Cytomic state-variable filter with drive, ring modulation, distortion, and various reverb types. ## Version history (last 2 releases) ### 1.1 — 2026-07-01 Now Universal: native iPad support with two-column synth, bigger keyboard, and adaptive layouts. What's new: - Interactive ADSR curve — drag the handles to shape your envelopes. - Hold latch — sustain notes forever for drones and pads. - Long release and decay (up to 20 seconds) for soundscapes. - Refreshed visuals: glowing waveform glyphs, filter pills, animated background, hero with note name, redesigned splash. - Save and recall patches via the new Patches sheet. - Stereo Width control with Spatial Audio support on AirPods Pro/Max. - Audio fix: app no longer goes silent after saving a patch. ### 1.0 — 2026-04-30 No release notes. ## More apps by Lukasz Pomianek - [Star Chaser Run](https://appshunter.io/ios/app/star-chaser-run/id6761955893) - [Abyssal: Bioluminescent Dive](https://appshunter.io/ios/app/abyssal-bioluminescent-dive/id6767818021) - [GLYPH: TERMINAL](https://appshunter.io/ios/app/glyph-terminal/id6767888319) - [Grumpy Grid](https://appshunter.io/ios/app/grumpy-grid/id6769529143) - [Stack and Slash](https://appshunter.io/ios/app/stack-and-slash/id6774898375) All apps by Lukasz Pomianek: https://appshunter.io/developer/1890450297 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-13.*