# Sennheiser Smart Control Plus vs Defunc

The clearest difference is review sentiment: Sennheiser Smart Control Plus at 72% against Defunc's 0%. Defunc's advantage is iOS requirement (12.0 vs 15.0). 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 Plus 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 Plus | Defunc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4.6K ratings)](https://appshunter.io/ios/app/sennheiser-smart-control-plus/id6448098057/reviews)** | — |
| Number of ratings | **4.6K** | — |
| Positive reviews | **71.9% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 190 MB | 41 MB |
| Requires iOS | 15.0 | **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 Plus

[App page](https://appshunter.io/ios/app/sennheiser-smart-control-plus/id6448098057)

This application provides advanced control and personalization for compatible Sennheiser headphones. Users can customize audio, manage noise cancellation, update firmware, and locate their devices. It offers features like Sound Zones and a Fit Test for an enhanced listening experience.

**Highlights:** Firmware Updates, Customizable Equalizer, Sound Personalization, Sound Zones, Fit Test, Find Headphones, Noise Cancellation Control

**In-app purchases:** none

**What reviewers like**

- 🍻 ANC OFF/ON control
- 👍 Seamless functionality
- 🚀 Fluid and responsive
- 💡 Customizable EQ presets
- 👍 Helpful app features

**What reviewers complain about**

- 🐛 Connectivity issues
- 🐛 Firmware update problems
- 🐛 Headphone detection problems
- 🔋 Battery life concerns
- 👎 Dysfunctional app

**Reported bugs**

- Headphones not detected in sound personalization
- Headphones not connecting to app
- Firmware update issues

**Requested features**

- Widget for easier control
- Transfer devices from old app
- iPad mode
- Audio cable options


### 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 Plus free?

Sennheiser Smart Control Plus 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 Plus or Defunc have ads?

Neither Sennheiser Smart Control Plus nor Defunc shows ads.

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

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