# FiiO Control vs DSD Mastering Viewer

The clearest difference is in-app purchases: FiiO Control at none against DSD Mastering Viewer's 4. FiiO Control also leads on iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. DSD Mastering Viewer sells 4 one-off in-app purchases. FiiO Control asks for nothing beyond the download.

## The numbers

| Metric | FiiO Control | DSD Mastering Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (31 ratings)](https://appshunter.io/ios/app/fiio-control/id1485988916/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 13.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Free | — |
| Size | 204 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 12+ |
| Developer | [广州飞傲电子科技有限公司](https://appshunter.io/developer/1147527893) | [Siarhei Hladkou](https://appshunter.io/developer/6782669152) |

## What reviewers say

### FiiO Control

[App page](https://appshunter.io/ios/app/fiio-control/id1485988916)

This application allows users to customize and control their FiiO Bluetooth audio devices. Adjust audio settings, equalizer profiles, and general device functions for an enhanced listening experience.

**Highlights:** Customize general functions (charging, RGB, DAC mode), Adjust equalizer settings, Change audio settings (digital filter, channel balance), Access embedded user guide, Connect to supported FiiO Bluetooth devices

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Works well
- 🚀 Equalizer functionality
- 🚀 Firmware updates
- 🚀 Device controls

**What reviewers complain about**

- 🐛 Connectivity issues
- 🐛 Buggy and unreliable
- 🐛 Crashes and freezes
- 🐛 Lack of device support
- 🐛 Unresponsive app

**Reported bugs**

- App not detecting devices
- Connection failures
- Crashes on startup
- Settings not persisting
- Incompatibility with newer devices and iOS versions

**Requested features**

- More customizable EQ
- Multiple EQ presets
- Parametric EQ
- Firmware update support
- Wider device compatibility


### DSD Mastering Viewer

[App page](https://appshunter.io/ios/app/dsd-mastering-viewer/id6806110367)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-Day Trial | Free | one-time |
| Converter | $99.99 | one-time |
| DSD Viewer | $99.99 | one-time |
| DSD Viewer+Converter | $199.99 | one-time |


## Frequently asked questions

### Is FiiO Control free?

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

### Is DSD Mastering Viewer free?

DSD Mastering Viewer is free to download, with in-app purchases available.

### Do FiiO Control or DSD Mastering Viewer have ads?

Neither FiiO Control nor DSD Mastering Viewer shows ads.

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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.*