# JAX ESSENTIALS vs SL950

The clearest difference is price: JAX ESSENTIALS at $4.99 against SL950's $24.99. SL950's advantage is update cadence (every 4 days vs every 2 weeks). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

JAX ESSENTIALS costs $4.99 and SL950 $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

JAX ESSENTIALS ships an update every 2 weeks, SL950 every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | JAX ESSENTIALS | SL950 |
| --- | --- | --- |
| Price | **$4.99** | $24.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/jax-essentials-phaser/id1636820878/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Paid | — |
| Size | 33 MB | 24 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jens Guell](https://appshunter.io/developer/1195004865) | [Delta Seven Kft.](https://appshunter.io/developer/1355331300) |

## What reviewers say

### 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


### SL950

[App page](https://appshunter.io/ios/app/sl950/id6502950757)

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

**In-app purchases:** none


## Frequently asked questions

### Is JAX ESSENTIALS free?

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

### Is SL950 free?

SL950 costs $24.99, with no in-app purchases.

### Do JAX ESSENTIALS or SL950 have ads?

Neither JAX ESSENTIALS nor SL950 shows ads.

### Which is updated more often, JAX ESSENTIALS or SL950?

JAX ESSENTIALS ships an update every 2 weeks, and SL950 every 4 days. Most recently, JAX ESSENTIALS was updated on November 3, 2026 and SL950 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.*