# XII AudioVisual vs S

The clearest difference is price: S at $2.99 against XII AudioVisual's $9.99. S also leads on update cadence (every 7 months vs every 22 months) and ratings volume (11 vs 2). XII AudioVisual's advantage is rating (3.0 vs 2.6). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

XII AudioVisual costs $9.99 and S $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

XII AudioVisual holds the better App Store score, 3.0 against 2.6. That said, the two scores are not equally well evidenced: S has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 33% of XII AudioVisual's written reviews are positive against 31% of S's.

XII AudioVisual ships an update every 22 months, S every 7 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | XII AudioVisual | S |
| --- | --- | --- |
| Price | $9.99 | **$2.99** |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/xii-audiovisual/id905741418/reviews)** | [2.6 (11 ratings)](https://appshunter.io/ios/app/s-modular/id1291071549/reviews) |
| Number of ratings | 2 | **11** |
| Positive reviews | **33.3% of reviews** | 31.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 7 months** |
| Monetization | Paid | Paid |
| Size | 167 MB | 7 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [昊 刘](https://appshunter.io/developer/652348004) | [Paul Betowski](https://appshunter.io/developer/538476580) |

## What reviewers say

### XII AudioVisual

[App page](https://appshunter.io/ios/app/xii-audiovisual/id905741418)

This app generates 3D computer graphics and music in real-time based on the twelve-tone technique. It offers automatic composition with limited user interface, allowing MIDI note export to DAWs. The music is experimental and not intended for conventional listening.

**Highlights:** Real-time 3D computer graphics, Audio-visual music generation, Twelve-tone technique composition, MIDI note export via Wi-Fi, Sequence setup UI, Interactive 3D rotation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### S

[App page](https://appshunter.io/ios/app/s-modular/id1291071549)

This semi-modular synthesizer app for iPad offers a hands-on sound design experience with a single-screen interface for intuitive patching. It delivers a warm, vintage sound inspired by 1970s synthesizers, featuring dual oscillators, resonant filters, and multiple modulation sources.

**Highlights:** Single-screen interface, Fast, hands-on patching, Vintage 1970s synth sound, Dual oscillators, Resonant ladder filter, Multiple modulation sources

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is XII AudioVisual free?

XII AudioVisual costs $9.99, with no in-app purchases.

### Is S free?

S costs $2.99, with no in-app purchases.

### Which has better reviews, XII AudioVisual or S?

XII AudioVisual is rated higher. XII AudioVisual averages 3.0 out of 5 from 2 ratings, while S averages 2.6 from 11 ratings.

### Do XII AudioVisual or S have ads?

Neither XII AudioVisual nor S shows ads.

### Which is updated more often, XII AudioVisual or S?

XII AudioVisual ships an update every 22 months, and S every 7 months. Most recently, XII AudioVisual was updated on October 24, 2026 and S on October 24, 2026.

---

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