Comparison

Marshall Bluetooth vs Harman Kardon One

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Marshall Bluetooth

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
Currently charting
Read full description

Things have moved on. There’s no longer just a dial to twist when your favourite song comes on, then guard to make sure no one else touches it. With the app, you can crank up the volume from the kitchen and there’s nothing anyone can do about it. It’s using the powers of technology for good, and ultimately with you in control, better playlists for all. And if apps aren’t your thing, you can still use our products without it. Using the app is simple. Just connect your devices, adjust the volume, and get on with your life. You can fiddle with more detailed adjustments if you’re that way inclined, like equalisers and noise control for headphones – everything is there to help create your perfect fit. Our app supports these products: Stockwell III Milton A.N.C. Bromley 150 Bromley 450 Bromley 750 Middleton II Kilburn III Monitor III A.N.C. Emberton III Willen II Minor IV Major V Motif II A.N.C. Middleton Minor III Acton III Bluetooth Stanmore III Bluetooth Woburn III Bluetooth Emberton II Willen Motif A.N.C. Mode II Monitor II A.N.C. Acton II Bluetooth Stanmore II Bluetooth Woburn II Bluetooth

About

Harman Kardon One

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
Read full description

The official app for setting up and controlling Harman Kardon speakers and soundbars. Connect to Wi-Fi, customize EQ and control your compatible device with a single convenient app. The Harman Kardon One app helps you to easily set up the devices, personalize settings, and use the integrated music services to enjoy your favorite songs. Features: - Breeze through setup with step-by-step guidance. - Customize speaker and soundbar EQ setting. - Personalize your speaker’s lighting to effortlessly match your mood, music, or space.* - Manage all your devices and check their connection status, playback content etc. all at a glance. - Personalize your music experience, save favorite playlists or ambient sounds for quick and easy access.* - Control music playback from the integrated music player. - Access a variety of music streaming services, Internet radio, and podcasts in high definition.* - Stereo pair or group your speakers into a multi-channel system for elevated listening experience. - Wirelessly connect multiple speakers to create a louder party. - Keep device software updated, to enjoy the latest features. - Get product support. * Feature availability depends on product model.

Screenshots

Marshall Bluetooth4 screens
Harman Kardon One4 screens

Verdict

The call

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 (#127 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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Marshall Bluetooth ships an update every 11 days, Harman Kardon One every 3 months. Both last shipped on November 5, 2026.

Scorecard4 real differences · 7 level
Marshall Bluetooth versus Harman Kardon One: the parameters behind the verdict, then further details
ParameterMarshall BluetoothHarman Kardon One
PriceFreeFree
Rating4.8 (15K ratings)4.8 (1.1K ratings) — better
Positive reviews37.9% of reviews — better36.2% of reviews
Number of ratings15K — better1.1K
Update frequencyEvery 11 days — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
Best chart rank#127 — better—
DevicesiPhoneiPhone, iPod — better
Requires iOS16.016
Further details — not scored
Size68 MB261 MB
Age rating12+4+
DeveloperMarshall Group ABHarman International Industries

Customer experience

Marshall Bluetooth

All ratings15,421 ratings
Positive94.4%
Neutral1.5%
Negative4.0%
Written reviews1,776 reviews
Positive37.9%
Neutral8.7%
Negative53.4%

Harman Kardon One

All ratings1,095 ratings
Positive94.7%
Neutral1.2%
Negative4.1%
Written reviews141 reviews
Positive36.2%
Neutral13.5%
Negative50.4%

Bugs and requests

Marshall Bluetooth

Reported bugs

4 issues
  • App unable to detect connected devices
  • Firmware update process freezes
  • Inconsistent Bluetooth connectivity
  • App crashes and freezes

Requested features

4 requests
  • Customizable EQ settings
  • Stereo pairing support
  • Volume control in app
  • Better app stability and reliability

Harman Kardon One

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Marshall Bluetooth

No in-app purchases

None

Harman Kardon One

No in-app purchases

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?
Harman Kardon One 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 5, 2026 and Harman Kardon One on November 5, 2026.

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