Synth by Wärn vs LuSID Synthesizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Synth by Wärn
Explore unique soundscapes with two distinct synthesizers. This app offers a creative tool for generating experimental audio and musical textures.
- Two unique synthesizers
- Experimental sound generation
- Creative audio tool
- Musical texture creation
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A couple of weird synths.
LuSID Synthesizer
Create synthwave music with a powerful, intuitive synthesizer. Features a multi-voice engine, versatile filter, built-in sequencer, and a range of effects. Record and share your creations easily.
- 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
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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.
Screenshots
Verdict
The clearest difference is rating: LuSID Synthesizer at 5.0 against Synth by Wärn's 3.8. Synth by Wärn's advantage is ratings volume (4 vs 1) and iOS requirement (9.0 vs 18.4). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
LuSID Synthesizer holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
| Parameter | Synth by Wärn | LuSID Synthesizer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (4 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | — | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 18.4 |
| Further details — not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Johannes Warn | Lukasz Pomianek |
Customer experience
Synth by Wärn
LuSID Synthesizer
In-app purchases
Synth by Wärn
No in-app purchases
LuSID Synthesizer
No in-app purchases
Questions
Is Synth by Wärn free?
Is LuSID Synthesizer free?
Which has better reviews, Synth by Wärn or LuSID Synthesizer?
Do Synth by Wärn or LuSID Synthesizer have ads?
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