# DUO LINK 4 vs Hypernyx Partner

The clearest difference is review sentiment: Hypernyx Partner at 100% against DUO LINK 4's 20%. Hypernyx Partner also leads on rating (5.0 vs 2.1). DUO LINK 4's advantage is ratings volume (498 vs 2) and iOS requirement (11.0 vs 15.1). 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.

Hypernyx Partner holds the better App Store score, 5.0 against 2.1. That said, the two scores are not equally well evidenced: DUO LINK 4 has 498 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 20% of DUO LINK 4's written reviews are positive against 100% of Hypernyx Partner's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 13, 2026 and June 7, 2026 respectively.

## The numbers

| Metric | DUO LINK 4 | Hypernyx Partner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (498 ratings)](https://appshunter.io/ios/app/duo-link-4/id1103672387/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hypernyx-partner/id6476615453/reviews)** |
| Number of ratings | **498** | 2 |
| Positive reviews | 19.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 123 MB | 32 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PNY](https://appshunter.io/developer/1103672386) | [Neda Mokhtari](https://appshunter.io/developer/1655477549) |

## What reviewers say

### DUO LINK 4

[App page](https://appshunter.io/ios/app/duo-link-4/id1103672387)

Manage and transfer files between your iOS device and a USB flash drive. Free up storage, back up data, and even charge your device. Supports a wide range of file formats for seamless integration.

**Highlights:** Free up iPhone/iPad space, Charge iOS devices, Back up contacts, Transfer photos and videos, Store photos directly, Manage files, Music and video playback

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Efficient file transfer
- 💡 Useful for freeing up phone storage
- 👍 Straightforward to use

**What reviewers complain about**

- 🐛 Frequent app crashes
- 🔍 Confusing or limited UI
- 🔌 Compatibility issues with newer devices
- 💾 Data loss or corruption

**Reported bugs**

- App fails to detect connected device
- Transferred files not visible or accessible
- Inconsistent behavior when renaming folders

**Requested features**

- Add 'select all' option for photos/files
- Support for more file formats
- Improve iPad app experience
- Integrate with native Files app


### Hypernyx Partner

[App page](https://appshunter.io/ios/app/hypernyx-partner/id6476615453)

Easily configure and manage your smart alarm system. Create, edit, and test system components like zones, outputs, and remotes. Customize Wi-Fi, SIM, sounds, and language settings for a personalized experience.

**Highlights:** Configure alarm system components, Manage partitions and zones, Edit control and magic remotes, Set up Wi-Fi and SIM cards, Customize alert sounds and messages, Update system firmware, Step-by-step configuration wizard

**In-app purchases:** none


## Frequently asked questions

### Is DUO LINK 4 free?

DUO LINK 4 is free to download, with no in-app purchases.

### Is Hypernyx Partner free?

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

### Which has better reviews, DUO LINK 4 or Hypernyx Partner?

Hypernyx Partner is rated higher. DUO LINK 4 averages 2.1 out of 5 from 498 ratings, while Hypernyx Partner averages 5.0 from 2 ratings.

### Do DUO LINK 4 or Hypernyx Partner have ads?

Neither DUO LINK 4 nor Hypernyx Partner shows ads.

### Which is updated more often, DUO LINK 4 or Hypernyx Partner?

DUO LINK 4 ships an update every 2 months, and Hypernyx Partner every 2 months. Most recently, DUO LINK 4 was updated on September 13, 2026 and Hypernyx Partner on June 7, 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.*