# AUM vs Koala Sampler

The clearest difference is price: Koala Sampler at $4.99 against AUM's $24.99. Koala Sampler also leads on update cadence (fortnightly vs every 3 months) and chart position (#8 vs unranked). AUM's advantage is iOS requirement (12.0 vs 15.0). On rating, review sentiment, ratings volume and ads there is nothing between them.

AUM costs $24.99 and Koala Sampler $4.99 up front. AUM sells 4 one-off in-app purchases and Koala Sampler sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for AUM against 4.8 for Koala Sampler. Both are backed by a comparable volume of ratings — 535 and 1.5K respectively. Written reviews are what separate them: 82% of AUM's written reviews are positive against 88% of Koala Sampler's.

AUM ships an update every 3 months, Koala Sampler fortnightly. Both last shipped on November 2, 2026.

## The numbers

| Metric | AUM | Koala Sampler |
| --- | --- | --- |
| Price | $24.99 | **$4.99** |
| Rating | [4.7 (535 ratings)](https://appshunter.io/ios/app/aum-audio-mixer/id1055636344/reviews) | **[4.8 (1.5K ratings)](https://appshunter.io/ios/app/koala-sampler-beat-maker/id1449584007/reviews)** |
| Number of ratings | 535 | **1.5K** |
| Positive reviews | 81.9% of reviews | **88.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#8** |
| Size | 13 MB | 60 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kymatica AB](https://appshunter.io/developer/522046659) | [Mazbox Limited](https://appshunter.io/developer/329604853) |

## What reviewers say

### AUM

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

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


### Koala Sampler

[App page](https://appshunter.io/ios/app/koala-sampler-beat-maker/id1449584007)

**Currently charting:** #8 Top Paid · Music, #48 Top Paid (US App Store)

This app allows you to record sounds with your phone's microphone, transform them with effects, and create beats and tracks. Its intuitive interface focuses on a fast and fun music-making process.

**Highlights:** Record up to 64 samples with mic, Apply 16 built-in effects, Load and use own samples, Create beats with high-resolution sequencer, Export loops and tracks as WAV, AI sample separation, AUv3 and MIDI compatibility

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ese-O's Sample Pack | $2.99 | one-time |
| Solar Studies Samplepack | $2.99 | one-time |
| Soon Come Dub Sample Pack | $2.99 | one-time |
| Analog Astronaut Samplepack | $2.99 | one-time |
| Cirrus Cuts Sample Pack | $2.99 | one-time |
| Samurai Edition | $3.99 | one-time |
| Mixer | $4.99 | one-time |

**What reviewers like**

- 👍 Intuitive and easy to use
- 🚀 Smooth workflow and fast performance
- 💡 Powerful sampling and sequencing capabilities
- 🔥 Excellent value for the price
- 🎨 Creative and inspiring sound design

**What reviewers complain about**

- 🐛 Occasional crashes and stability issues
- 🔇 Limited effects and sound manipulation options
- 📁 Difficulty managing and organizing samples/projects
- 🎚️ Lack of advanced MIDI mapping and control options
- 🔍 Unclear or confusing UI elements in certain areas

**Reported bugs**

- Samples not loading or disappearing after app updates
- Sequencer timing and quantization issues
- Crashes when using certain features or with large projects

**Requested features**

- Ability to record and edit MIDI sequences
- More comprehensive effects and sound processing tools
- Improved sample management and organization features
- Support for external MIDI controllers and hardware integration
- Customizable color schemes and UI themes


## Frequently asked questions

### Is AUM free?

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

### Is Koala Sampler free?

Koala Sampler costs $4.99, and also offers in-app purchases.

### Which has better reviews, AUM or Koala Sampler?

Koala Sampler is rated higher. AUM averages 4.7 out of 5 from 535 ratings, while Koala Sampler averages 4.8 from 1.5K ratings.

### Do AUM or Koala Sampler have ads?

Neither AUM nor Koala Sampler shows ads.

### Which is updated more often, AUM or Koala Sampler?

AUM ships an update every 3 months, and Koala Sampler fortnightly. Most recently, AUM was updated on November 2, 2026 and Koala Sampler on November 2, 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.*