# Euphony Stylus vs HQPDcontrol v4

The clearest difference is in-app purchases: Euphony Stylus at none against HQPDcontrol v4's 2. Euphony Stylus also leads on update cadence (weekly vs every 2 weeks) and iOS requirement (12.0 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. HQPDcontrol v4 sells 2 in-app purchases, starting at $1.99 per month. Euphony Stylus asks for nothing beyond the download.

Euphony Stylus ships an update weekly, HQPDcontrol v4 every 2 weeks. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Euphony Stylus | HQPDcontrol v4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.9 (10 ratings)](https://appshunter.io/ios/app/hqpdcontrol-v4/id1518963245/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 53 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [HD/INFO d.o.o.](https://appshunter.io/developer/1439448330) | [Ales Prochazka](https://appshunter.io/developer/1518963457) |

## What reviewers say

### Euphony Stylus

[App page](https://appshunter.io/ios/app/euphony-stylus/id1439448331)

**Features:** macOS Compatibility

**In-app purchases:** none


### HQPDcontrol v4

[App page](https://appshunter.io/ios/app/hqpdcontrol-v4/id1518963245)

Control your high-quality audio playback and upsampling from your mobile device. Browse your music library, manage playback queues, and adjust audio processing settings remotely. Seamlessly connect to your HQPlayer setup for an intuitive audiophile experience.

**Highlights:** Library browsing by artist, album, genre, and directory, Full playback transport controls, Real-time audio format and processing display, Queue management with drag-and-drop reordering, Remote adjustment of HQPlayer audio settings, HRA catalog browsing and streaming, Automatic HQPlayer instance discovery

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HQPDcontrol v4 (M) | $1.99 | per month |
| HQPDcontrol v4 (A) | $12.99 | per year |


## Frequently asked questions

### Is Euphony Stylus free?

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

### Is HQPDcontrol v4 free?

HQPDcontrol v4 is free to download, with in-app purchases available.

### Do Euphony Stylus or HQPDcontrol v4 have ads?

Neither Euphony Stylus nor HQPDcontrol v4 shows ads.

### Which is updated more often, Euphony Stylus or HQPDcontrol v4?

Euphony Stylus ships an update weekly, and HQPDcontrol v4 every 2 weeks. Most recently, Euphony Stylus was updated on October 14, 2026 and HQPDcontrol v4 on October 8, 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.*