# AUMI vs Effectrix

The clearest difference is in-app purchases: AUMI at none against Effectrix's 1. AUMI also leads on rating (5.0 vs 4.7) and device support (3 vs 1). Effectrix's advantage is ratings volume (97 vs 4) and review sentiment (67% vs 50%). On price, update cadence and ads there is nothing between them.

Both are free to download. Effectrix sells 1 one-off in-app purchase. AUMI asks for nothing beyond the download.

AUMI holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Effectrix has 97 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 50% of AUMI's written reviews are positive against 67% of Effectrix's, so the app with the better star average is not the one people write more warmly about.

AUMI ships an update every 6 months, Effectrix every 4 months. The most recent releases landed on September 25, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | AUMI | Effectrix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/aumi/id647002265/reviews)** | [4.7 (97 ratings)](https://appshunter.io/ios/app/effectrix/id681772221/reviews) |
| Number of ratings | 4 | **97** |
| Positive reviews | 50.0% of reviews | **67.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | **Free** | Paid |
| Size | 69 MB | 52 MB |
| Requires iOS | **12.4** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rensselaer Polytechnic Institute](https://appshunter.io/developer/545728224) | [Sugar Bytes GmbH](https://appshunter.io/developer/614418826) |

## What reviewers say

### AUMI

[App page](https://appshunter.io/ios/app/aumi/id647002265)

This app allows individuals with limited mobility to create music through movement and gestures. It focuses on improvisation and self-expression, making music accessible to a wider range of people, including those with profound physical disabilities.

**Highlights:** Music creation through movement and gestures, Focus on improvisation and self-expression, Accessible for individuals with profound physical disabilities, Uses device cameras for input, Configurable sound sensitivity, MIDI controller functionality, Import audio from other apps

**Features:** macOS Compatibility

**In-app purchases:** none


### Effectrix

[App page](https://appshunter.io/ios/app/effectrix/id681772221)

This professional multi-effect sequencer for iPad allows users to create unique sound patterns and loop collages by scattering 14 intelligent effects across a sequencer matrix. It offers a playful workflow, refined algorithms, and a wide spectrum of effects for outstanding results.

**Highlights:** Multi-effect sequencer matrix, 14 intelligent effects, Creative sound pattern generation, Loop collage creation, Audio Unit v3 integration, Full MIDI support, Ableton Link synchronization

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Effectrix Full Version | $24.99 | one-time |


## Frequently asked questions

### Is AUMI free?

AUMI is free to download, with no in-app purchases.

### Is Effectrix free?

Effectrix is free to download, with in-app purchases available.

### Which has better reviews, AUMI or Effectrix?

AUMI is rated higher. AUMI averages 5.0 out of 5 from 4 ratings, while Effectrix averages 4.7 from 97 ratings.

### Do AUMI or Effectrix have ads?

Neither AUMI nor Effectrix shows ads.

### Which is updated more often, AUMI or Effectrix?

AUMI ships an update every 6 months, and Effectrix every 4 months. Most recently, AUMI was updated on September 25, 2026 and Effectrix on October 13, 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.*