# Harman Kardon One vs S1, S2 Speaker Controller App

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.

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.

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.

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.

## The numbers

| Metric | Harman Kardon One | S1, S2 Speaker Controller App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.1K ratings)](https://appshunter.io/ios/app/harman-kardon-one/id1626444106/reviews)** | [4.5 (32 ratings)](https://appshunter.io/ios/app/s1-s2-speaker-controller-app/id6511240452/reviews) |
| Number of ratings | **1.1K** | 32 |
| Positive reviews | 36.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Daily** |
| Monetization | **Free** | Freemium |
| Size | 261 MB | 18 MB |
| Requires iOS | 16 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Harman International Industries](https://appshunter.io/developer/419840205) | [Jonas Endthaller](https://appshunter.io/developer/1771385320) |

## What reviewers say

### 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


### S1, S2 Speaker Controller App

[App page](https://appshunter.io/ios/app/s1-s2-speaker-controller-app/id6511240452)

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:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week Pro With 3 Days Trial | $6.99 | per 7 days |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*