# Heavenly Chord Performer vs SL Echo

The clearest difference is price: Heavenly Chord Performer at Free against SL Echo's $6.99. SL Echo's advantage is in-app purchases (none vs 4). On update cadence, ads, device support and iOS requirement there is nothing between them.

Heavenly Chord Performer is free to download; SL Echo costs $6.99 up front. Heavenly Chord Performer sells 4 in-app purchases, starting at $0.99 per 7 days. SL Echo asks for nothing beyond the download.

Heavenly Chord Performer ships an update every 10 days, SL Echo weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Heavenly Chord Performer | SL Echo |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sl-echo/id6797348934/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | — | Paid |
| Size | 4 MB | 18 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Better World Studio](https://appshunter.io/developer/424394067) | [VIACHESLAV ZHILTSOV](https://appshunter.io/developer/1862005860) |

## What reviewers say

### Heavenly Chord Performer

[App page](https://appshunter.io/ios/app/heavenly-chord-performer/id6790610315)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Heavenly Premium Weekly | $0.99 | per 7 days |
| Heavenly Premium Monthly | $1.99 | per month |
| Heavenly Premium Yearly | $9.99 | per year |
| Heavenly Premium Forever | $19.99 | one-time |


### 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 Heavenly Chord Performer free?

Heavenly Chord Performer is free to download, with in-app purchases available.

### Is SL Echo free?

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

### Do Heavenly Chord Performer or SL Echo have ads?

Neither Heavenly Chord Performer nor SL Echo shows ads.

### Which is updated more often, Heavenly Chord Performer or SL Echo?

Heavenly Chord Performer ships an update every 10 days, and SL Echo weekly. Most recently, Heavenly Chord Performer was updated on October 31, 2026 and SL Echo 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.*