# VisualSound vs SL Echo

The clearest difference is price: SL Echo at $6.99 against VisualSound's $19.99. SL Echo also leads on iOS requirement (15.0 vs 18.0). VisualSound's advantage is update cadence (every 2 days vs every 5 days). On rating, ratings volume, ads and in-app purchases there is nothing between them.

VisualSound costs $19.99 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 VisualSound against 5.0 for SL Echo. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

VisualSound ships an update every 2 days, SL Echo every 5 days. Both last shipped on September 30, 2026.

## The numbers

| Metric | VisualSound | SL Echo |
| --- | --- | --- |
| Price | $19.99 | **$6.99** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/visualsound-av-modular-synth/id6791189371/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sl-echo/id6797348934/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 days |
| Monetization | Paid | Paid |
| Size | 40 MB | 18 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mike Gazzaruso](https://appshunter.io/developer/1369584675) | [VIACHESLAV ZHILTSOV](https://appshunter.io/developer/1862005860) |

## What reviewers say

### VisualSound

[App page](https://appshunter.io/ios/app/visualsound-av-modular-synth/id6791189371)

This app is a modular instrument that synthesizes sound and visuals using a unified patching system. Explore over 140 modules for audio, control, and graphics, and even generate custom effects with AI. It's designed for performance and integrates with your existing studio setup.

**Highlights:** Unified sound and visual patching, Over 140 modules (sound, control, visuals, code), AI-powered module creation, GPU-native visuals, Performance-oriented features, AUv3 integration and hosting, Cross-device functionality (iPad, Mac, iPhone)

**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 VisualSound free?

VisualSound costs $19.99, with no in-app purchases.

### Is SL Echo free?

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

### Which has better reviews, VisualSound or SL Echo?

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

### Do VisualSound or SL Echo have ads?

Neither VisualSound nor SL Echo shows ads.

### Which is updated more often, VisualSound or SL Echo?

VisualSound ships an update every 2 days, and SL Echo every 5 days. Most recently, VisualSound was updated on September 30, 2026 and SL Echo on September 30, 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.*