Comparison

3D Synth vs LuSID Synthesizer

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

Head to head
About

3D Synth

This app is a touch synthesizer that allows continuous pitch control for expressive playing. It offers various sound-shaping tools and effects, along with on-device recording capabilities for sharing and backup.

Highlights
  • Chromatic touch interface
  • Real-time responsive play
  • Multiple oscillator and FM instruments
  • ADSR envelope shaping
  • Reverb, delay, distortion, EQ effects
  • On-device audio recording
Features
Read full description

3DSynth! A chromatic touch synthesizer and on-device recorder. Chromatic by design - 3DSynth lets you play all notes and frequencies continuously—not locked to MIDI steps—so you control pitch directly with your finger like a real instrument! Real-time, responsive play - Low latency and immediate feedback keep your phrasing natural and expressive while you glide and shape the note in motion. Shape your sound - Choose different instruments (oscillator, FM, plucked), sculpt with ADSR and add effects like reverb, modulation, delay, distortion, and EQ! Record on device - Capture your takes directly to the app’s local recordings folder for sharing and backup. **Important** Deleting the app removes its local data, including recordings and settings. Export anything you want to keep before uninstalling or resetting the device. Enjoy and thanks for downloading!

About

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.

Highlights
  • 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
Features
Read full description

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

3D Synth3 screens
LuSID Synthesizer4 screens

Verdict

The call

The clearest difference is rating: LuSID Synthesizer at 5.0 against 3D Synth's 4.0. On price, ratings volume, ads and in-app purchases 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

LuSID Synthesizer holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Scorecard1 real difference · 8 level
3D Synth versus LuSID Synthesizer: the parameters behind the verdict, then further details
Parameter3D SynthLuSID Synthesizer
PriceFreeFree
Rating4.0 (1 ratings)5.0 (1 ratings) — better
Number of ratings11
Update frequency—Every 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.518.4 — better
Further details — not scored
Size9 MB3 MB
Age rating4+4+
DeveloperDavid NoyLukasz Pomianek

In-app purchases

None

3D Synth

No in-app purchases

None

LuSID Synthesizer

No in-app purchases

Questions

Is 3D Synth free?
3D Synth is free to download, with no in-app purchases.
Is LuSID Synthesizer free?
LuSID Synthesizer is free to download, with no in-app purchases.
Which has better reviews, 3D Synth or LuSID Synthesizer?
LuSID Synthesizer is rated higher. 3D Synth averages 4.0 out of 5 from 1 ratings, while LuSID Synthesizer averages 5.0 from 1 ratings.
Do 3D Synth or LuSID Synthesizer have ads?
Neither 3D Synth nor LuSID Synthesizer shows ads.

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