Sennheiser Smart Control vs S&O
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sennheiser Smart Control
This app allows users to control and customize select Sennheiser soundbars and headphones. Adjust audio settings, manage device connections, and access firmware updates for an enhanced listening experience.
- Device control
- Audio customization
- Firmware updates
- Connectivity management
- Sound settings adjustment
Read full descriptionHide full description
Do you own one of the following products? Then please download our Smart Control Plus app instead. MOMENTUM 5, MOMENTUM True Wireless 5, HDB 630, MOMENTUM 4, MOMENTUM True Wireless 4, MOMENTUM Sport, MOMENTUM True Wireless 3, ACCENTUM, ACCENTUM Plus, ACCENTUM True Wireless, CX True Wireless, CX Plus True Wireless, CX 500 True Wireless Use this Smart Control app for Sennheiser AMBEO soundbars and the following headphones. AMBEO Soundbar Max, AMBEO Soundbar Plus, AMBEO Soundbar Mini, MOMENTUM 3, MOMENTUM True Wireless, MOMENTUM True Wireless 2, SPORT True Wireless, CX 150BT, CX 350BT, CX 400BT True Wireless, IE 80S BT, PXC 550, PXC 550-II, HD 350BT, HD 450BT, HD 450SE, HD 458BT
S&O
This app allows users to customize settings and optimize sound quality for supported Bluetooth headphones. It offers features like ambient sound control, personalized operation settings, and white noise for relaxation. Users can also track their earbuds' battery life.
- Ambient sound control (ANC)
- Customizable operation settings
- White noise for relaxation
- Battery status tracking
- Sound quality optimization
Read full descriptionHide full description
The customized app for your preference Nowadays, it’s more common to wear wireless earbuds when commuting, working, doing workout , driving, just to name a few than before. S&O App offers specific functions to supported S&O headphones, and allows users to customize their app settings and optimize sound quality. Ambient sound control Ease up to take control of ANC and ambient sound mode. Customized operation Based on your usage pattern, to customize operation settings, such as volume up and down, play and pause playback, answer and hand up phone call, transparency mode. White noise Combined natural sound with brainwave music, to refine your sleep quality and deeply relax your brain. Battery status To track earbuds’ battery life by an indicator on the App.
Screenshots
Verdict
The clearest difference is rating: Sennheiser Smart Control at 3.4 against S&O's 3.0. Sennheiser Smart Control also leads on ratings volume (1.5K vs 2). S&O's advantage is update cadence (every 2 weeks vs monthly) and review sentiment (33% vs 23%). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sennheiser Smart Control holds the better App Store score, 3.4 against 3.0. That said, the two scores are not equally well evidenced: Sennheiser Smart Control has 1.5K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 23% of Sennheiser Smart Control's written reviews are positive against 33% of S&O's, so the app with the better star average is not the one people write more warmly about.
Sennheiser Smart Control ships an update monthly, S&O every 2 weeks. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.
| Parameter | Sennheiser Smart Control | S&O |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (1.5K ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 23.0% of reviews | 33.3% of reviews — better |
| Number of ratings | 1.5K — better | 2 |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 352 MB | 138 MB |
| Age rating | 4+ | 4+ |
| Developer | Sonova Consumer Hearing GmbH | Mifo Technology Co.LTD |
Customer experience
Sennheiser Smart Control
S&O
Bugs and requests
Sennheiser Smart Control
Reported bugs
4 issues- App unable to find/connect to paired headphones
- EQ settings not saving properly
- Firmware update process frequently fails
- Compatibility issues with newer iOS versions
Requested features
5 requests- Option to disable touch controls
- Ability to turn off ANC and transparency mode
- More granular EQ controls
- Persistent settings across power cycles
- Widgets for quick access to common functions
S&O
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sennheiser Smart Control
No in-app purchases
S&O
No in-app purchases
Questions
Is Sennheiser Smart Control free?
Is S&O free?
Which has better reviews, Sennheiser Smart Control or S&O?
Do Sennheiser Smart Control or S&O have ads?
Which is updated more often, Sennheiser Smart Control or S&O?
Other comparisons
