Comparison

Harman Kardon One vs Marshall

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

Head to head
About

Harman Kardon One

Easily set up and control your Harman Kardon speakers and soundbars. Personalize EQ settings, lighting, and music playback. Stream music from integrated services and manage all your devices in one place.

Highlights
  • Step-by-step setup guidance
  • Customizable EQ settings
  • Personalize speaker lighting
  • Manage all connected devices
  • Integrated music player
  • Access music streaming services
  • Stereo pairing and multi-channel grouping
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.

About

Marshall

Customize your soundbar experience with personalized audio settings and room correction. Receive automatic updates to ensure your device is always up-to-date with the latest features and improvements.

Highlights
  • Personalized sound customization
  • Room correction for balanced audio
  • Adjustable sound modes
  • Over-the-air updates
  • Guided initial setup
Features
Read full description

After spending over 60 years mastering the art of sound, we know that the only right way to listen to music, is your way. The Marshall app puts you in control, letting you shape your sound the way you want it. Let the app walk you through the initial quick setup to put the all the settings right at your fingertips. Enjoy the Marshall signature sound straight up or fine-tune it to match your playlist, your film, your mood. This app is built for listeners who refuse to settle, and the Over-the-Air updates make sure your speakers are up to date with little or no effort.

Screenshots

Harman Kardon One4 screens
Marshall4 screens

Verdict

The call

The clearest difference is rating: Harman Kardon One at 4.8 against Marshall's 3.0. Harman Kardon One also leads on review sentiment (39% vs 14%) and ratings volume (1.1K vs 8). Marshall's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads, in-app purchases and device support 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

Harman Kardon One holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Harman Kardon One has 1.1K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 39% of Harman Kardon One's written reviews are positive against 14% of Marshall's.

UpkeepUpdate frequency

Harman Kardon One ships an update every 3 months, Marshall every 3 weeks. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

Scorecard5 real differences · 5 level
Harman Kardon One versus Marshall: the parameters behind the verdict, then further details
ParameterHarman Kardon OneMarshall
PriceFreeFree
Rating4.8 (1.1K ratings) — better3.0 (8 ratings)
Positive reviews39.0% of reviews — better13.5% of reviews
Number of ratings1.1K — better8
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPod — betteriPhone
Requires iOS16 — better17.6
Further details — not scored
Size243 MB66 MB
Age rating4+12+
DeveloperHarman International IndustriesMarshall Group AB

Customer experience

Harman Kardon One

All ratings934 ratings
Positive94.8%
Neutral1.2%
Negative4.1%
Written reviews123 reviews
Positive39.0%
Neutral13.0%
Negative48.0%

Marshall

All ratings8 ratings
Positive37.5%
Neutral25.0%
Negative37.5%
Written reviews37 reviews
Positive13.5%
Neutral8.1%
Negative78.4%

In-app purchases

None

Harman Kardon One

No in-app purchases

None

Marshall

No in-app purchases

Questions

Is Harman Kardon One free?
Harman Kardon One is free to download, with no in-app purchases.
Is Marshall free?
Marshall is free to download, with no in-app purchases.
Which has better reviews, Harman Kardon One or Marshall?
Harman Kardon One is rated higher. Harman Kardon One averages 4.8 out of 5 from 1.1K ratings, while Marshall averages 3.0 from 8 ratings.
Do Harman Kardon One or Marshall have ads?
Neither Harman Kardon One nor Marshall shows ads.
Which is updated more often, Harman Kardon One or Marshall?
Harman Kardon One ships an update every 3 months, and Marshall every 3 weeks. Most recently, Harman Kardon One was updated on October 29, 2026 and Marshall on October 28, 2026.

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