# Sennheiser Smart Control vs Defunc

The clearest difference is review sentiment: Sennheiser Smart Control at 23% against Defunc's 0%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sennheiser Smart Control ships an update monthly, Defunc every 5 weeks. The most recent releases landed on September 29, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Sennheiser Smart Control | Defunc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (1.5K ratings)](https://appshunter.io/ios/app/sennheiser-smart-control/id1408526071/reviews)** | — |
| Number of ratings | **1.5K** | — |
| Positive reviews | **23.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 329 MB | 41 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sonova Consumer Hearing GmbH](https://appshunter.io/developer/1590168100) | [The Art of Utility AB](https://appshunter.io/developer/1575861817) |

## What reviewers say

### Sennheiser Smart Control

[App page](https://appshunter.io/ios/app/sennheiser-smart-control/id1408526071)

Effortlessly control and personalize your Sennheiser headphones and AMBEO Soundbar. Features include tailored audio with Sound Check, location-based sound adaptation with Sound Zones, and easy access to noise cancellation and transparent hearing.

**Highlights:** Effortless sound control, Personalize audio experience, Sound Check for individual hearing, Sound Zones for location-based settings, Noise Cancellation and Transparent Hearing, User accounts for device settings transfer, Software and firmware updates

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- 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**

- 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


### Defunc

[App page](https://appshunter.io/ios/app/defunc/id6450643468)

Personalize your audio experience with custom sound settings and EQ presets. Access user manuals, shop for new products, and locate lost earbuds directly within the app.

**Highlights:** Personalized sound profiles, EQ presets by genre, In-app user manuals, Product shopping links, Earbud location tracking, Customizable sound settings

**In-app purchases:** none


## Frequently asked questions

### Is Sennheiser Smart Control free?

Sennheiser Smart Control is free to download, with no in-app purchases.

### Is Defunc free?

Defunc is free to download, with no in-app purchases.

### Do Sennheiser Smart Control or Defunc have ads?

Neither Sennheiser Smart Control nor Defunc shows ads.

### Which is updated more often, Sennheiser Smart Control or Defunc?

Sennheiser Smart Control ships an update monthly, and Defunc every 5 weeks. Most recently, Sennheiser Smart Control was updated on September 29, 2026 and Defunc on September 17, 2026.

---

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