# S vs VAPolyTZFM

The clearest difference is price: S at $2.99 against VAPolyTZFM's $14.99. S also leads on chart position (#194 vs unranked) and ratings volume (11 vs 3). VAPolyTZFM's advantage is rating (5.0 vs 2.6) and review sentiment (50% vs 31%). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

S costs $2.99 and VAPolyTZFM $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

VAPolyTZFM holds the better App Store score, 5.0 against 2.6. Both are backed by a comparable volume of ratings — 11 and 3 respectively. Written reviews point the same way: 31% of S's written reviews are positive against 50% of VAPolyTZFM's.

S ships an update every 7 months, VAPolyTZFM every 9 months. Both last shipped on October 7, 2026.

## The numbers

| Metric | S | VAPolyTZFM |
| --- | --- | --- |
| Price | **$2.99** | $14.99 |
| Rating | [2.6 (11 ratings)](https://appshunter.io/ios/app/s-modular/id1291071549/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/vapolytzfm/id6747690642/reviews)** |
| Number of ratings | **11** | 3 |
| Positive reviews | 31.3% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 9 months |
| Monetization | Paid | Paid |
| Best chart rank | **#194** | — |
| Size | 7 MB | 17 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Paul Betowski](https://appshunter.io/developer/538476580) | [Ryo Togawa](https://appshunter.io/developer/1474193056) |

## What reviewers say

### S

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

**Currently charting:** #194 Top Paid · Music (US App Store)

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


### VAPolyTZFM

[App page](https://appshunter.io/ios/app/vapolytzfm/id6747690642)

This app is a polyphonic synthesizer that utilizes Through Zero FM for musical sound generation. It offers a standalone mode with Ableton Link and MIDI support, as well as an AudioUnit Extension for use with other music software. Built-in effects and iCloud Drive integration enhance its creative capabilities.

**Highlights:** Through Zero FM synthesis, AudioUnit Extension (AUv3) support, Ableton Link and MIDI connectivity, Built-in effects suite, iCloud Drive project sharing, Analog style step sequencer, Up to 8 voice polyphony

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is S free?

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

### Is VAPolyTZFM free?

VAPolyTZFM costs $14.99, with no in-app purchases.

### Which has better reviews, S or VAPolyTZFM?

VAPolyTZFM is rated higher. S averages 2.6 out of 5 from 11 ratings, while VAPolyTZFM averages 5.0 from 3 ratings.

### Do S or VAPolyTZFM have ads?

Neither S nor VAPolyTZFM shows ads.

### Which is updated more often, S or VAPolyTZFM?

S ships an update every 7 months, and VAPolyTZFM every 9 months. Most recently, S was updated on October 7, 2026 and VAPolyTZFM on October 7, 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.*