# LuSID Synthesizer vs S

The clearest difference is rating: LuSID Synthesizer at 5.0 against S's 4.5. S's advantage is ratings volume (4 vs 1) and iOS requirement (16.0 vs 18.4). On price, update cadence, ads and in-app purchases there is nothing between them.

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 4.5. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

LuSID Synthesizer ships an update every 2 months, S every 6 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | LuSID Synthesizer | S |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lusid-synthesizer/id6764299166/reviews)** | [4.5 (4 ratings)](https://appshunter.io/ios/app/s-2/id6769518675/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 3 MB | 17 MB |
| Requires iOS | 18.4 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lukasz Pomianek](https://appshunter.io/developer/1890450297) | [Mathias Kirkerød](https://appshunter.io/developer/1884969842) |

## What reviewers say

### LuSID Synthesizer

[App page](https://appshunter.io/ios/app/lusid-synthesizer/id6764299166)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### S

[App page](https://appshunter.io/ios/app/s-2/id6769518675)

This app is a polyphonic synthesizer that works with specific hardware. It offers a variety of sound engines, filters, and effects for creating unique audio textures. Advanced modulation options and a flexible routing system allow for deep sound design.

**Highlights:** Dual engine slots per voice, Multiple sound flavors (analog, wavetable, FM, speech), Classic and Modern filter modes, Advanced FX rack, Two free-routing LFOs, Unified mod matrix, Standalone, AU, and AUv3 formats

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LuSID Synthesizer free?

LuSID Synthesizer is free to download, with no in-app purchases.

### Is S free?

S is free to download, with no in-app purchases.

### Which has better reviews, LuSID Synthesizer or S?

LuSID Synthesizer is rated higher. LuSID Synthesizer averages 5.0 out of 5 from 1 ratings, while S averages 4.5 from 4 ratings.

### Do LuSID Synthesizer or S have ads?

Neither LuSID Synthesizer nor S shows ads.

### Which is updated more often, LuSID Synthesizer or S?

LuSID Synthesizer ships an update every 2 months, and S every 6 weeks. Most recently, LuSID Synthesizer was updated on November 5, 2026 and S on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*