# Sentium Glitch vs SL Echo

The clearest difference is price: SL Echo at $6.99 against Sentium Glitch's $29.99. SL Echo also leads on iOS requirement (15.0 vs 17.0). Sentium Glitch's advantage is ratings volume (4 vs 1). On rating, update cadence, ads and in-app purchases there is nothing between them.

Sentium Glitch costs $29.99 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 Sentium Glitch against 5.0 for SL Echo. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Sentium Glitch ships an update every 2 weeks, SL Echo weekly. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Sentium Glitch | SL Echo |
| --- | --- | --- |
| Price | $29.99 | **$6.99** |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/sentium-glitch/id6770832821/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sl-echo/id6797348934/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Paid | Paid |
| Size | 14 MB | 18 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Christian Thompson](https://appshunter.io/developer/1511795684) | [VIACHESLAV ZHILTSOV](https://appshunter.io/developer/1862005860) |

## What reviewers say

### Sentium Glitch

[App page](https://appshunter.io/ios/app/sentium-glitch/id6770832821)

Create complex, animated electronic instruments using four distinct synthesis engines. Blend subtractive, FM, Karplus-Strong, and wavetable layers with extensive modulation options. Save and recall patches with iCloud sync for a comprehensive sound design experience.

**Highlights:** Four distinct synthesis engines, Layered sound design, Extensive modulation routing, XY pad recording, AUv3 and standalone app, Factory and user presets, iCloud sync for presets

**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 Sentium Glitch free?

Sentium Glitch costs $29.99, with no in-app purchases.

### Is SL Echo free?

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

### Which has better reviews, Sentium Glitch or SL Echo?

Sentium Glitch and SL Echo are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do Sentium Glitch or SL Echo have ads?

Neither Sentium Glitch nor SL Echo shows ads.

### Which is updated more often, Sentium Glitch or SL Echo?

Sentium Glitch ships an update every 2 weeks, and SL Echo weekly. Most recently, Sentium Glitch was updated on October 17, 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.*