# Hum vs AUM

The clearest difference is price: Hum at $2.99 against AUM's $24.99. Hum also leads on in-app purchases (none vs 4) and update cadence (every 2 months vs every 3 months). AUM's advantage is rating (4.7 vs 3.7) and ratings volume (534 vs 44). On review sentiment, ads, device support and iOS requirement there is nothing between them.

Hum costs $2.99 and AUM $24.99 up front. AUM sells 4 one-off in-app purchases. Hum asks for nothing beyond the download.

AUM holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: AUM has 534 ratings behind it against 44, so its average is the more settled of the two. Written reviews split almost evenly too, at 81% and 82% positive.

Hum ships an update every 2 months, AUM every 3 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Hum | AUM |
| --- | --- | --- |
| Price | **$2.99** | $24.99 |
| Rating | [3.7 (44 ratings)](https://appshunter.io/ios/app/hum/id796154884/reviews) | **[4.7 (534 ratings)](https://appshunter.io/ios/app/aum-audio-mixer/id1055636344/reviews)** |
| Number of ratings | 44 | **534** |
| Positive reviews | 81.1% of reviews | **81.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#187** |
| Size | 67 MB | 13 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Just Hum](https://appshunter.io/developer/796154887) | [Kymatica AB](https://appshunter.io/developer/522046659) |

## What reviewers say

### Hum

[App page](https://appshunter.io/ios/app/hum/id796154884)

Capture and organize all your songwriting ideas in one place. This app combines lyric writing, note-taking, and audio recording. Keep your creative output sorted by various tags and backed up to Dropbox.

**Highlights:** Lyric writing, Note-taking, Audio recording, Tagging and sorting, Dropbox backup and sync, Built-in tuner

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

**In-app purchases:** none


### AUM

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

**Currently charting:** #187 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 Hum free?

Hum costs $2.99, with no in-app purchases.

### Is AUM free?

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

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

AUM is rated higher. Hum averages 3.7 out of 5 from 44 ratings, while AUM averages 4.7 from 534 ratings.

### Do Hum or AUM have ads?

Neither Hum nor AUM shows ads.

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

Hum ships an update every 2 months, and AUM every 3 months. Most recently, Hum was updated on October 23, 2026 and AUM on October 24, 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.*