# Key Detect vs Koala Sampler

The clearest difference is review sentiment: Koala Sampler at 88% against Key Detect's 32%. Koala Sampler also leads on rating (4.8 vs 2.2) and ratings volume (1.4K vs 37). Key Detect's advantage is in-app purchases (none vs 8) and price ($2.99 vs $4.99). On update cadence, ads and device support there is nothing between them.

Key Detect costs $2.99 and Koala Sampler $4.99 up front. Koala Sampler sells 8 one-off in-app purchases. Key Detect asks for nothing beyond the download.

Koala Sampler holds the better App Store score, 4.8 against 2.2. That said, the two scores are not equally well evidenced: Koala Sampler has 1.4K ratings behind it against 37, so its average is the more settled of the two. Written reviews point the same way: 32% of Key Detect's written reviews are positive against 88% of Koala Sampler's.

Key Detect ships an update fortnightly, Koala Sampler every 3 weeks. The most recent releases landed on September 27, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Key Detect | Koala Sampler |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| Rating | [2.2 (37 ratings)](https://appshunter.io/ios/app/key-detect/id824107485/reviews) | **[4.8 (1.4K ratings)](https://appshunter.io/ios/app/koala-sampler-beat-maker/id1449584007/reviews)** |
| Number of ratings | 37 | **1.4K** |
| Positive reviews | 32.4% of reviews | **88.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | #198 | **#6** |
| Size | 18 MB | 59 MB |
| Requires iOS | **9.3** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MIXVIBES](https://appshunter.io/developer/417255034) | [Mazbox Limited](https://appshunter.io/developer/329604853) |

## What reviewers say

### Key Detect

[App page](https://appshunter.io/ios/app/key-detect/id824107485)

**Currently charting:** #198 Top Paid · Music (US App Store)

Instantly identify the musical key of any sound using your device's microphone. Ideal for DJs, musicians, and music students, it provides real-time harmonic analysis and supports both classic and harmonic notation.

**Highlights:** Real-time key identification, Harmonic mixing support, Musical theory training, Classic and harmonic notation, Dynamic tone change display

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Useful for music production
- 👍 Helpful for DJs
- 👍 Good for songwriting
- 👍 Works for electronic music
- 👍 Identifies key nicely

**What reviewers complain about**

- 🐛 Doesn't work
- 🐛 Not reliable
- 🐛 Crashes on opening
- 🐛 Rubbish
- 🐛 Absolute rubbish

**Reported bugs**

- Crashes every time on opening
- Stopped working suddenly
- Won't pick up any sound
- Doesn't stay open
- Start button only changes color, unclear status

**Requested features**

- Add a help link or option
- Update the app for new iOS versions
- Improve accuracy for non-electronic music
- Provide clear instructions


### Koala Sampler

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

**Currently charting:** #6 Top Paid · Music, #65 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 (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Koala AUv3 Plugin | $1.99 | one-time |
| 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 Key Detect free?

Key Detect costs $2.99, with no in-app purchases.

### Is Koala Sampler free?

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

### Which has better reviews, Key Detect or Koala Sampler?

Koala Sampler is rated higher. Key Detect averages 2.2 out of 5 from 37 ratings, while Koala Sampler averages 4.8 from 1.4K ratings.

### Do Key Detect or Koala Sampler have ads?

Neither Key Detect nor Koala Sampler shows ads.

### Which is updated more often, Key Detect or Koala Sampler?

Key Detect ships an update fortnightly, and Koala Sampler every 3 weeks. Most recently, Key Detect was updated on September 27, 2026 and Koala Sampler on October 1, 2026.

### Which is more popular, Key Detect or Koala Sampler?

Key Detect currently peaks at #198 in the App Store charts, and Koala Sampler at #6. 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.*