# JAX SR vs SL Echo

The clearest difference is update cadence: SL Echo at weekly against JAX SR's monthly. On price, rating, ratings volume and ads there is nothing between them.

JAX SR costs $6.99 and SL Echo $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for JAX SR against 5.0 for SL Echo. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

JAX SR ships an update monthly, SL Echo weekly. The most recent releases landed on September 23, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | JAX SR | SL Echo |
| --- | --- | --- |
| Price | $6.99 | $6.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/jax-sr-chorus/id1636821650/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sl-echo/id6797348934/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Paid | Paid |
| Size | 21 MB | 18 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jens Guell](https://appshunter.io/developer/1195004865) | [VIACHESLAV ZHILTSOV](https://appshunter.io/developer/1862005860) |

## What reviewers say

### JAX SR

[App page](https://appshunter.io/ios/app/jax-sr-chorus/id1636821650)

This audio effect processor allows selective frequency range processing for modulation effects. It offers a classic chorus with MIDI control and aims to avoid negative side effects by targeting specific frequency bands.

**Highlights:** Selective frequency range processing, Classic chorus modulation, Optional direct MIDI control, Universal app for multiple Apple platforms, Avoids negative side effects of full-range effects

**Features:** macOS Compatibility

**In-app purchases:** none


### SL Echo

[App page](https://appshunter.io/ios/app/sl-echo/id6797348934)

This audio effect app provides animated delay and space for musical decisions on iPad. Easily adjust time, feedback, and tone for various repeat styles, while maintaining a clear dry signal with stereo width and ducking. It supports AUv3 integration with popular music hosts.

**Highlights:** Animated delay and space effects, Adjustable time and feedback, Tone shaping controls, Stereo width and ducking, AUv3 support, Standalone preview mode, Factory and user presets

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

**In-app purchases:** none


## Frequently asked questions

### Is JAX SR free?

JAX SR costs $6.99, with no in-app purchases.

### Is SL Echo free?

SL Echo costs $6.99, with no in-app purchases.

### Which has better reviews, JAX SR or SL Echo?

JAX SR and SL Echo are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do JAX SR or SL Echo have ads?

Neither JAX SR nor SL Echo shows ads.

### Which is updated more often, JAX SR or SL Echo?

JAX SR ships an update monthly, and SL Echo weekly. Most recently, JAX SR was updated on September 23, 2026 and SL Echo on October 16, 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.*