# Marshall Bluetooth vs Harman Kardon One

The clearest difference is update cadence: Marshall Bluetooth at every 11 days against Harman Kardon One's every 3 months. Marshall Bluetooth also leads on ratings volume (15K vs 1.1K) and chart position (#126 vs unranked). Harman Kardon One's advantage is monetization model (free vs free with in-app purchases). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.8 for Marshall Bluetooth against 4.8 for Harman Kardon One. That said, the two scores are not equally well evidenced: Marshall Bluetooth has 15K ratings behind it against 1.1K, so its average is the more settled of the two. Written reviews are what separate them: 38% of Marshall Bluetooth's written reviews are positive against 36% of Harman Kardon One's.

Marshall Bluetooth ships an update every 11 days, Harman Kardon One every 3 months. Both last shipped on November 12, 2026.

## The numbers

| Metric | Marshall Bluetooth | Harman Kardon One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (15K ratings)](https://appshunter.io/ios/app/marshall-bluetooth/id1351654161/reviews)** | [4.8 (1.1K ratings)](https://appshunter.io/ios/app/harman-kardon-one/id1626444106/reviews) |
| Number of ratings | **15K** | 1.1K |
| Positive reviews | **37.9% of reviews** | 36.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#126** | — |
| Size | 68 MB | 261 MB |
| Requires iOS | 16.0 | 16 |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Marshall Group AB](https://appshunter.io/developer/592690279) | [Harman International Industries](https://appshunter.io/developer/419840205) |

## What reviewers say

### Marshall Bluetooth

[App page](https://appshunter.io/ios/app/marshall-bluetooth/id1351654161)

**Currently charting:** #126 Top Free · Music (US App Store)

Control your Marshall Bluetooth speakers and headphones remotely. Adjust volume, fine-tune audio with equalizers, and manage noise cancellation for a personalized listening experience. Enjoy enhanced control over your audio devices from anywhere.

**Highlights:** Remote volume control, Equalizer adjustments, Noise control for headphones, Connect multiple devices, Personalized audio settings

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Great sound quality
- 👍 Comfortable and durable design
- 🎨 Stylish and iconic look
- 🔋 Good battery life

**What reviewers complain about**

- 🐛 Connectivity issues with app
- 🔌 Firmware update problems
- 🤖 Unreliable app functionality
- 💤 Auto-off feature missing

**Reported bugs**

- App unable to detect connected devices
- Firmware update process freezes
- Inconsistent Bluetooth connectivity
- App crashes and freezes

**Requested features**

- Customizable EQ settings
- Stereo pairing support
- Volume control in app
- Better app stability and reliability


### Harman Kardon One

[App page](https://appshunter.io/ios/app/harman-kardon-one/id1626444106)

Easily set up and control your Harman Kardon speakers and soundbars. Customize EQ settings, personalize lighting, and manage all your devices from one place. Enjoy integrated music services, internet radio, and podcasts.

**Highlights:** Step-by-step device setup, Customizable EQ settings, Personalize speaker lighting, Manage all connected devices, Integrated music player, Access streaming services and radio, Stereo pairing and multi-channel systems

**In-app purchases:** none


## Frequently asked questions

### Is Marshall Bluetooth free?

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

### Is Harman Kardon One free?

Harman Kardon One is free to download, with no in-app purchases.

### Which has better reviews, Marshall Bluetooth or Harman Kardon One?

Marshall Bluetooth is rated higher. Marshall Bluetooth averages 4.8 out of 5 from 15K ratings, while Harman Kardon One averages 4.8 from 1.1K ratings.

### Do Marshall Bluetooth or Harman Kardon One have ads?

Neither Marshall Bluetooth nor Harman Kardon One shows ads.

### Which is updated more often, Marshall Bluetooth or Harman Kardon One?

Marshall Bluetooth ships an update every 11 days, and Harman Kardon One every 3 months. Most recently, Marshall Bluetooth was updated on November 12, 2026 and Harman Kardon One on November 12, 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.*