# Midi Echo AU vs ab Phaser X

The clearest difference is rating: ab Phaser X at 5.0 against Midi Echo AU's 3.5. Midi Echo AU's advantage is update cadence (every 6 weeks vs every 11 months) and price ($1.99 vs $5.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Midi Echo AU costs $1.99 and ab Phaser X $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ab Phaser X holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 8 and 5 respectively.

Midi Echo AU ships an update every 6 weeks, ab Phaser X every 11 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Midi Echo AU | ab Phaser X |
| --- | --- | --- |
| Price | **$1.99** | $5.99 |
| Rating | [3.5 (8 ratings)](https://appshunter.io/ios/app/midi-echo-au/id1422324067/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ab-phaser-x/id6469461420/reviews)** |
| Number of ratings | **8** | 5 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 11 months |
| Monetization | Paid | Paid |
| Size | 13 MB | 8 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [anthony saunders](https://appshunter.io/developer/460303742) | [Alejandro Cabrera Zuniga](https://appshunter.io/developer/1660382836) |

## 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


### ab Phaser X

[App page](https://appshunter.io/ios/app/ab-phaser-x/id6469461420)

This music app offers a versatile phase modulator with 2 to 12 stages. Customize sweeps with controls for rate, depth, frequency, and feedback. Adjust loudness and blend for your final sound.

**Highlights:** 2 to 12 stage phase modulation, Rate control (DAW sync or 0.001Hz-10Hz), Depth, Frequency, and Feedback controls, Gain and Mix controls for loudness and blend

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Midi Echo AU free?

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

### Is ab Phaser X free?

ab Phaser X costs $5.99, with no in-app purchases.

### Which has better reviews, Midi Echo AU or ab Phaser X?

ab Phaser X is rated higher. Midi Echo AU averages 3.5 out of 5 from 8 ratings, while ab Phaser X averages 5.0 from 5 ratings.

### Do Midi Echo AU or ab Phaser X have ads?

Neither Midi Echo AU nor ab Phaser X shows ads.

### Which is updated more often, Midi Echo AU or ab Phaser X?

Midi Echo AU ships an update every 6 weeks, and ab Phaser X every 11 months. Most recently, Midi Echo AU was updated on November 2, 2026 and ab Phaser X on November 3, 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.*