Comparison

Sennheiser Smart Control vs Nothing X

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

Head to head
About

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.

Highlights
  • Device control
  • Audio customization
  • Firmware updates
  • Connectivity management
  • Sound settings adjustment
Read 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

About

Nothing X

Manage your smart devices with this platform. Connect and customize smartwatches and earbuds, track health metrics like sleep and heart rate, and monitor fitness activities with real-time data. Syncs with Apple Health for a comprehensive view of your well-being.

Highlights
  • Smart device connection and management
  • Personalized function customization
  • Real-time health monitoring
  • Fitness activity tracking
  • Syncs with Apple Health
  • GPS for route recording
Features
Read full description

Nothing X - Your All-in-One Smart Device Manager Nothing X is a professional smart device control and management platform. It supports quick pairing with its smart watches and earbuds, enabling seamless device connection and efficient management. Device Management - Connect and manage Nothing X smart watches and earbuds, easily controlling all device functions. Personalized Customization - Support for customizing functions on watches and earbuds based on personal usage habits, creating a unique user experience. Health Monitoring - Real-time detection of health data such as sleep quality, heart rate, and blood oxygen. Multi-dimensional tracking of health status provides reference for a healthier lifestyle. Fitness Tracking - Real-time recording of daily activities and fitness data, including running routes, heart rate, and step frequency—all fitness metrics are clearly visible. 【Tips】 - This app supports syncing data to Apple Health, where you can view your health data. - GPS is used for recording running routes and updating watch weather; GPS remains active when the app runs in the background during workouts. - Device functions depend on hardware; detected data is for reference only and not intended for medical diagnosis. 【Contact Us】 If you encounter any issues or have suggestions while using the product, you can submit them by going to "My - Help & Feedback" in Nothing X, or by visiting the link: https://nothing.tech/pages/contact-support.

Screenshots

Sennheiser Smart Control4 screens
Nothing X4 screens

Verdict

The call

The clearest difference is review sentiment: Nothing X at 72% against Sennheiser Smart Control's 23%. Nothing X also leads on rating (4.7 vs 3.4). Sennheiser Smart Control's advantage is in-app purchases (none vs 3). On price, ratings volume, update cadence 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. Nothing X sells 3 one-off in-app purchases. Sennheiser Smart Control asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Nothing X holds the better App Store score, 4.7 against 3.4. Both are backed by a comparable volume of ratings — 1.5K and 3.5K respectively. Written reviews point the same way: 23% of Sennheiser Smart Control's written reviews are positive against 72% of Nothing X's.

UpkeepUpdate frequency

Sennheiser Smart Control ships an update monthly, Nothing X fortnightly. The most recent releases landed on November 9, 2026 and November 11, 2026 respectively.

Scorecard3 real differences · 7 level
Sennheiser Smart Control versus Nothing X: the parameters behind the verdict, then further details
ParameterSennheiser Smart ControlNothing X
PriceFreeFree
Rating3.4 (1.5K ratings)4.7 (3.5K ratings) — better
Positive reviews23.0% of reviews72.1% of reviews — better
Number of ratings1.5K3.5K — better
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size352 MB360 MB
Age rating4+4+
DeveloperSonova Consumer Hearing GmbHNothing Technology Limited

Customer experience

Sennheiser Smart Control

All ratings1,544 ratings
Positive57.8%
Neutral5.0%
Negative37.2%
Written reviews1,598 reviews
Positive23.0%
Neutral12.3%
Negative64.6%

Nothing X

All ratings3,431 ratings
Positive92.1%
Neutral2.2%
Negative5.7%
Written reviews2,316 reviews
Positive72.1%
Neutral7.4%
Negative20.5%

User reviews

Sennheiser Smart Control

From 1.5K App Store ratings

What we love

  • 🚀 Seamless connectivity
  • 👍 Intuitive user interface
  • 🎨 Customizable sound settings
  • 💡 Useful features like sound zones

Room to improve

  • 🐛 Frequent app crashes
  • 🔌 Unreliable Bluetooth connectivity
  • 🔍 Difficult to find/connect devices
  • 🔧 Buggy firmware updates
  • 🤔 Confusing and unintuitive navigation

Nothing X

From 3.5K App Store ratings

What we love

  • 🚀 Excellent sound quality
  • 👍 Great value for the price
  • 🔒 Robust noise cancellation
  • 💡 Customizable EQ and settings
  • 👍 Comfortable and secure fit

Room to improve

  • 🐛 Connectivity issues and random disconnects
  • 🔋 Battery life could be better
  • 🐛 Inconsistent touch controls
  • 🐛 Bugs with firmware updates
  • 🐛 Unreliable noise cancellation and transparency mode

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

Nothing X

Reported bugs

4 issues
  • Right earbud randomly stops working
  • App fails to connect to earbuds
  • EQ settings reset unexpectedly
  • Noise cancellation turns on/off randomly

Requested features

5 requests
  • More granular EQ controls
  • Ability to disable all touch controls
  • Home screen widget for battery levels
  • Integration with voice assistants
  • Improved wind noise reduction

In-app purchases

None

Sennheiser Smart Control

No in-app purchases

3 purchases

Nothing X

One-time3
  • 120-Minute Pack$2.49
  • 300-Minute Pack$5.99
  • 1200-Minute Pack$22.99

Questions

Is Sennheiser Smart Control free?
Sennheiser Smart Control is free to download, with no in-app purchases.
Is Nothing X free?
Nothing X is free to download, with in-app purchases available.
Which has better reviews, Sennheiser Smart Control or Nothing X?
Nothing X is rated higher. Sennheiser Smart Control averages 3.4 out of 5 from 1.5K ratings, while Nothing X averages 4.7 from 3.5K ratings.
Do Sennheiser Smart Control or Nothing X have ads?
Neither Sennheiser Smart Control nor Nothing X shows ads.
Which is updated more often, Sennheiser Smart Control or Nothing X?
Sennheiser Smart Control ships an update monthly, and Nothing X fortnightly. Most recently, Sennheiser Smart Control was updated on November 9, 2026 and Nothing X on November 11, 2026.

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