Comparison

Harman Kardon One vs S1, S2 Speaker Controller App

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. 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.

About

S1, S2 Speaker Controller App

Transform your device into a powerful speaker controller and microphone. Stream music from your library, amplify your voice for karaoke or presentations, and record and play back sound clips. Enjoy unlimited access to all features with a premium subscription.

Highlights
  • Stream music from phone library
  • Live microphone functionality
  • Record and play sound clips
  • Adjust volume
  • WiFi and Bluetooth connectivity
Features
Read full description

Download an App for Speaker Control! Transform your iPhone into a microphone and effortlessly stream music from your library to your speaker! Connect our app to your speakers via WiFi or Bluetooth and play music directly from your phone library. Browse your favorite songs and adjust the volume. Utilize the Live Microphone feature to amplify your voice, sing karaoke, or lead presentations. Just speak into your phone to broadcast your voice through the speaker. Please ensure to keep your phone and speaker at a certain distance to avoid any uncomfortable echo. Record sound clips and play them on demand with a single tap. Save clips and play them whenever you like. Make your speaker the most powerful and convenient one you've ever owned! Premium Subscription: - Subscribed users enjoy unlimited use of the Remote and access to all Premium features. - Non-subscribed users can access each Premium feature a limited number of times per day. - Payment will be charged to your iTunes account upon confirmation of purchase. - Subscription automatically renews unless auto-renew is disabled at least 24 hours before the end of the current period. - The account will be charged for renewal within 24 hours prior to the end of the current period, and the cost of renewal will be identified. - Users can manage subscriptions and disable auto-renewal by accessing their Account Settings after purchase. - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Terms of Use: https://docs.google.com/document/d/1zsAq3m-rTKKEP1-0-C0Fv6EJa70crLLiCqrA1etJTtc/edit Privacy Policy: https://docs.google.com/document/d/1UKg2zVqBZJqeIpOFUQ51U9hE_UNbArRwluFFNWnEWZk/edit

Screenshots

Harman Kardon One4 screens
S1, S2 Speaker Controller App4 screens

Verdict

The call

The clearest difference is in-app purchases: Harman Kardon One at none against S1, S2 Speaker Controller App's 1. Harman Kardon One also leads on ratings volume (1.1K vs 32) and rating (4.8 vs 4.5). S1, S2 Speaker Controller App's advantage is update cadence (daily vs every 3 months). On price, ads, device support and iOS requirement 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. S1, S2 Speaker Controller App sells 1 in-app purchase, starting at $6.99 per 7 days. Harman Kardon One asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Harman Kardon One holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Harman Kardon One has 1.1K ratings behind it against 32, so its average is the more settled of the two.

UpkeepUpdate frequency

Harman Kardon One ships an update every 3 months, S1, S2 Speaker Controller App daily. The most recent releases landed on November 8, 2026 and November 4, 2026 respectively.

Scorecard5 real differences · 5 level
Harman Kardon One versus S1, S2 Speaker Controller App: the parameters behind the verdict, then further details
ParameterHarman Kardon OneS1, S2 Speaker Controller App
PriceFreeFree
Rating4.8 (1.1K ratings) — better4.5 (32 ratings)
Positive reviews36.2% of reviews—
Number of ratings1.1K — better32
Update frequencyEvery 3 monthsDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPod
Requires iOS1615.0 — better
Further details — not scored
Size261 MB18 MB
Age rating4+4+
DeveloperHarman International IndustriesJonas Endthaller

Customer experience

Harman Kardon One

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

S1, S2 Speaker Controller App

All ratings25 ratings
Positive88.0%
Neutral0.0%
Negative12.0%

In-app purchases

None

Harman Kardon One

No in-app purchases

1 purchases

S1, S2 Speaker Controller App

Subscriptions1
  • 1 Week Pro With 3 Days Trial3 Days trial$6.997 Days

Questions

Is Harman Kardon One free?
Harman Kardon One is free to download, with no in-app purchases.
Is S1, S2 Speaker Controller App free?
S1, S2 Speaker Controller App is free to download, with in-app purchases available.
Which has better reviews, Harman Kardon One or S1, S2 Speaker Controller App?
Harman Kardon One is rated higher. Harman Kardon One averages 4.8 out of 5 from 1.1K ratings, while S1, S2 Speaker Controller App averages 4.5 from 32 ratings.
Do Harman Kardon One or S1, S2 Speaker Controller App have ads?
Neither Harman Kardon One nor S1, S2 Speaker Controller App shows ads.
Which is updated more often, Harman Kardon One or S1, S2 Speaker Controller App?
Harman Kardon One ships an update every 3 months, and S1, S2 Speaker Controller App daily. Most recently, Harman Kardon One was updated on November 8, 2026 and S1, S2 Speaker Controller App on November 4, 2026.

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