# AUMI vs Circular Bells

AUMI and Circular Bells both sit at 5.0 stars, but that hides the real split: 100% of Circular Bells's written reviews are positive against 50% of AUMI's. AUMI's advantage is in-app purchases (none vs 1). On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for AUMI against 5.0 for Circular Bells. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews are what separate them: 50% of AUMI's written reviews are positive against 100% of Circular Bells's.

AUMI ships an update every 6 months, Circular Bells every 5 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | AUMI | Circular Bells |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/aumi/id647002265/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/circular-bells/id1062362784/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 69 MB | 6 MB |
| Requires iOS | 12.4 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rensselaer Polytechnic Institute](https://appshunter.io/developer/545728224) | [Andrea Franceschini](https://appshunter.io/developer/454062630) |

## 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


### Circular Bells

[App page](https://appshunter.io/ios/app/circular-bells/id1062362784)

Explore a vibrant, interactive musical interface inspired by Montessori principles. Arrange and play with colorful bells to create melodies and enjoy a relaxing, visually engaging experience.

**Highlights:** Interactive bell interface, Customizable layouts, Uplifting sounds, Floating animation, Montessori-inspired design

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


## Frequently asked questions

### Is AUMI free?

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

### Is Circular Bells free?

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

### Which has better reviews, AUMI or Circular Bells?

AUMI and Circular Bells are both rated 5.0 out of 5 on the App Store, from 4 and 2 ratings respectively.

### Do AUMI or Circular Bells have ads?

Neither AUMI nor Circular Bells shows ads.

### Which is updated more often, AUMI or Circular Bells?

AUMI ships an update every 6 months, and Circular Bells every 5 months. Most recently, AUMI was updated on November 1, 2026 and Circular Bells on November 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*