# Xequence AU | Keys vs TfxEcho

The clearest difference is rating: Xequence AU | Keys at 4.9 against TfxEcho's 4.7. Xequence AU | Keys also leads on price ($2.99 vs $4.99). TfxEcho's advantage is update cadence (every 3 months vs every 8 months) and chart position (#185 vs unranked). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Xequence AU | Keys costs $2.99 and TfxEcho $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Xequence AU | Keys holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 18 and 12 respectively. Written reviews split almost evenly too, at 80% and 80% positive.

Xequence AU | Keys ships an update every 8 months, TfxEcho every 3 months. The most recent releases landed on September 28, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Xequence AU | Keys | TfxEcho |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| Rating | **[4.9 (18 ratings)](https://appshunter.io/ios/app/xequence-au-keys/id1453028249/reviews)** | [4.7 (12 ratings)](https://appshunter.io/ios/app/tfxecho/id1523777426/reviews) |
| Number of ratings | **18** | 12 |
| Positive reviews | 80.0% of reviews | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#185** |
| Size | 3 MB | 1 MB |
| Requires iOS | 14.2 | **13.5** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Ewering](https://appshunter.io/developer/1743777532) | [Ryo Togawa](https://appshunter.io/developer/1474193056) |

## What reviewers say

### Xequence AU | Keys

[App page](https://appshunter.io/ios/app/xequence-au-keys/id1453028249)

This app functions as a versatile MIDI keyboard controller within AUv3 hosts, offering expressive playing modes and customizable controllers. It's designed for music production enthusiasts to enhance their workflow with a responsive and resource-efficient interface.

**Highlights:** Scale-aware single or dual keyboard, Adjustable key width and glide mode, Velocity emulation, Configurable MIDI CC touch ribbons, Special controller modes (MPE-like), AU presets and state saving

**Features:** Vision Pro support

**In-app purchases:** none


### TfxEcho

[App page](https://appshunter.io/ios/app/tfxecho/id1523777426)

**Currently charting:** #185 Top Paid · Music (US App Store)

This audio plugin offers a warm, dark echo effect inspired by analog delay units. It allows for adjustable delay times, feedback, and filters, with modulation capabilities and tempo syncing. The plugin captures high-frequency signals for a versatile sound.

**Highlights:** Echo and delay effect, BBD-inspired delay lines, Adjustable delay time (20-1200 ms), Feedback control (0-100%), Low-pass and high-pass filters, Modulation rate and width, Tempo sync

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

**In-app purchases:** none


## Frequently asked questions

### Is Xequence AU | Keys free?

Xequence AU | Keys costs $2.99, with no in-app purchases.

### Is TfxEcho free?

TfxEcho costs $4.99, with no in-app purchases.

### Which has better reviews, Xequence AU | Keys or TfxEcho?

Xequence AU | Keys is rated higher. Xequence AU | Keys averages 4.9 out of 5 from 18 ratings, while TfxEcho averages 4.7 from 12 ratings.

### Do Xequence AU | Keys or TfxEcho have ads?

Neither Xequence AU | Keys nor TfxEcho shows ads.

### Which is updated more often, Xequence AU | Keys or TfxEcho?

Xequence AU | Keys ships an update every 8 months, and TfxEcho every 3 months. Most recently, Xequence AU | Keys was updated on September 28, 2026 and TfxEcho on September 20, 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.*