# Bloom vs AUM

The clearest difference is price: Bloom at $3.99 against AUM's $24.99. Bloom also leads on in-app purchases (none vs 4) and chart position (#65 vs #197). AUM's advantage is update cadence (every 3 months vs every 11 months) and ratings volume (534 vs 99). On rating, review sentiment, ads and device support there is nothing between them.

Bloom costs $3.99 and AUM $24.99 up front. AUM sells 4 one-off in-app purchases. Bloom asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Bloom against 4.7 for AUM. That said, the two scores are not equally well evidenced: AUM has 534 ratings behind it against 99, so its average is the more settled of the two. Written reviews are what separate them: 84% of Bloom's written reviews are positive against 82% of AUM's.

Bloom ships an update every 11 months, AUM every 3 months. Both last shipped on October 29, 2026.

## The numbers

| Metric | Bloom | AUM |
| --- | --- | --- |
| Price | **$3.99** | $24.99 |
| Rating | **[4.8 (99 ratings)](https://appshunter.io/ios/app/bloom/id292792586/reviews)** | [4.7 (534 ratings)](https://appshunter.io/ios/app/aum-audio-mixer/id1055636344/reviews) |
| Number of ratings | 99 | **534** |
| Positive reviews | **84.5% of reviews** | 81.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#65** | #197 |
| Size | 17 MB | 13 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Opal Limited](https://appshunter.io/developer/292792589) | [Kymatica AB](https://appshunter.io/developer/522046659) |

## What reviewers say

### Bloom

[App page](https://appshunter.io/ios/app/bloom/id292792586)

**Currently charting:** #65 Top Paid · Music (US App Store)

Create unique melodies and elaborate patterns by simply tapping the screen. This generative music player offers an infinite selection of compositions and accompanying visualizations, even when left idle. It's a musical instrument, composition, and artwork all in one.

**Highlights:** Create melodies by tapping, Generative music player, Visualizations, 12 mood settings, Adjustable delay, Shake to clear

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

**In-app purchases:** none

**What reviewers like**

- 🌟 Fantastic
- 🎨 Beautiful
- 🧘‍♀️ Relaxing
- 👨‍🎨 Creative
- 🎶 Mesmerizing

**What reviewers complain about**

- 🔇 High frequencies prevent relaxation
- 🔇 Harsh/imbalanced sounds
- 🔇 Limited sound variety
- 🔇 Lack of recording/export function
- 🔇 Crashes on iOS 8/11

**Reported bugs**

- Crashes on iOS 8/11 updates
- Stops working in background
- High notes cause issues for some users

**Requested features**

- Add more sound options/instruments
- Implement recording and export capabilities
- Add sleep timer and background playback
- Improve low-end sound quality
- Introduce MIDI support


### AUM

[App page](https://appshunter.io/ios/app/aum-audio-mixer/id1055636344)

**Currently charting:** #197 Top Paid · Music (US App Store)

This app is a versatile audio mixer, recorder, and connection hub for mobile devices. It allows users to connect various audio sources, route signals, apply effects, and record mixes with high fidelity. It supports advanced features like MIDI control, synchronization, and integration with other audio apps and hardware.

**Highlights:** Connect hardware inputs/outputs, Route audio and MIDI, Host Audio Unit extensions, Record mixes and individual tracks, Synchronize with Ableton Link, Built-in processing nodes, MIDI control and routing

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $1.99 | one-time |
| Large Tip | $4.99 | one-time |
| Huge Tip | $9.99 | one-time |

**What reviewers like**

- 👍 Excellent audio routing and mixing capabilities
- 🚀 Powerful and flexible workflow
- 💡 Seamless integration with AUv3 and IAA apps
- 👍 Intuitive and clean user interface
- 👍 Reliable and stable performance

**What reviewers complain about**

- 🐛 Occasional crashes or stability issues
- 💡 Lack of MIDI clock sync receive functionality
- 💡 Limited visual customization options (e.g. channel sizes)
- 🐛 Compatibility issues with some hardware interfaces

**Reported bugs**

- Crashes or freezes when using certain plugin combinations
- Compatibility issues with iOS 15 and newer
- Inconsistent MIDI transport controls

**Requested features**

- Add MIDI clock sync receive capability
- Implement a timeline/sequencer view
- Provide more visual customization options
- Improve support for external hardware integration


## Frequently asked questions

### Is Bloom free?

Bloom costs $3.99, with no in-app purchases.

### Is AUM free?

AUM costs $24.99, and also offers in-app purchases.

### Which has better reviews, Bloom or AUM?

Bloom is rated higher. Bloom averages 4.8 out of 5 from 99 ratings, while AUM averages 4.7 from 534 ratings.

### Do Bloom or AUM have ads?

Neither Bloom nor AUM shows ads.

### Which is updated more often, Bloom or AUM?

Bloom ships an update every 11 months, and AUM every 3 months. Most recently, Bloom was updated on October 29, 2026 and AUM on October 29, 2026.

### Which is more popular, Bloom or AUM?

Bloom currently peaks at #65 in the App Store charts, and AUM at #197. Chart position reflects recent download velocity rather than total install base.

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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.*