# S vs JAX ESSENTIALS

The clearest difference is rating: JAX ESSENTIALS at 5.0 against S's 2.6. JAX ESSENTIALS also leads on update cadence (every 2 weeks vs every 7 months). S's advantage is ratings volume (11 vs 1) and price ($2.99 vs $4.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

S costs $2.99 and JAX ESSENTIALS $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

JAX ESSENTIALS holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: S has 11 ratings behind it against 1, so its average is the more settled of the two.

S ships an update every 7 months, JAX ESSENTIALS every 2 weeks. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | S | JAX ESSENTIALS |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| Rating | [2.6 (11 ratings)](https://appshunter.io/ios/app/s-modular/id1291071549/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/jax-essentials-phaser/id1636820878/reviews)** |
| Number of ratings | **11** | 1 |
| Positive reviews | 31.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Monetization | Paid | Paid |
| Size | 7 MB | 33 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Paul Betowski](https://appshunter.io/developer/538476580) | [Jens Guell](https://appshunter.io/developer/1195004865) |

## What reviewers say

### 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


### JAX ESSENTIALS

[App page](https://appshunter.io/ios/app/jax-essentials-phaser/id1636820878)

This audio effect plugin offers a multi-stage phaser modulation with allpass filters for dynamic soundscapes. It's compatible across Apple devices and integrates with popular music production software.

**Highlights:** Multi-stage phaser modulation, Allpass filter design, LFO for depth and speed modulation, Cross-device preset sharing, Includes ~200 factory presets, Resizable and adaptive interface

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

**In-app purchases:** none


## Frequently asked questions

### Is S free?

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

### Is JAX ESSENTIALS free?

JAX ESSENTIALS costs $4.99, with no in-app purchases.

### Which has better reviews, S or JAX ESSENTIALS?

JAX ESSENTIALS is rated higher. S averages 2.6 out of 5 from 11 ratings, while JAX ESSENTIALS averages 5.0 from 1 ratings.

### Do S or JAX ESSENTIALS have ads?

Neither S nor JAX ESSENTIALS shows ads.

### Which is updated more often, S or JAX ESSENTIALS?

S ships an update every 7 months, and JAX ESSENTIALS every 2 weeks. Most recently, S was updated on October 7, 2026 and JAX ESSENTIALS on October 4, 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.*