# Midi Echo AU vs GainX2

The clearest difference is update cadence: GainX2 at every 5 days against Midi Echo AU's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Midi Echo AU costs $1.99 and GainX2 $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Midi Echo AU ships an update every 6 weeks, GainX2 every 5 days. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Midi Echo AU | GainX2 |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | **[3.5 (8 ratings)](https://appshunter.io/ios/app/midi-echo-au/id1422324067/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | Paid | — |
| Size | 13 MB | 12 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [anthony saunders](https://appshunter.io/developer/460303742) | [Rob Jackson](https://appshunter.io/developer/1072346998) |

## What reviewers say

### Midi Echo AU

[App page](https://appshunter.io/ios/app/midi-echo-au/id1422324067)

This app creates repeating MIDI note effects, similar to audio echoes but for digital music signals. It allows for independent control of note-on and note-off messages, offering extensive customization for musical expression.

**Highlights:** Selectable echo types (fixed, ping pong, taper), Adjustable number of echoes (0-20), MIDI velocity reduction for quieter echoes, Define pitch interval for successive echoes, Tempo sync or mSec delay time, Set MIDI channel for echoes, Disable individual echoes, MIDI thru control

**Features:** Vision Pro support

**In-app purchases:** none


### GainX2

[App page](https://appshunter.io/ios/app/gainx2/id6755764494)

**In-app purchases:** none


## Frequently asked questions

### Is Midi Echo AU free?

Midi Echo AU costs $1.99, with no in-app purchases.

### Is GainX2 free?

GainX2 costs $1.99, with no in-app purchases.

### Do Midi Echo AU or GainX2 have ads?

Neither Midi Echo AU nor GainX2 shows ads.

### Which is updated more often, Midi Echo AU or GainX2?

Midi Echo AU ships an update every 6 weeks, and GainX2 every 5 days. Most recently, Midi Echo AU was updated on October 15, 2026 and GainX2 on October 7, 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.*