# DUO LINK 4 vs Zende

The clearest difference is rating: Zende at 5.0 against DUO LINK 4's 2.1. DUO LINK 4's advantage is ratings volume (513 vs 3) and iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Zende 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 513 ratings behind it against 3, so its average is the more settled of the two.

## The numbers

| Metric | DUO LINK 4 | Zende |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (513 ratings)](https://appshunter.io/ios/app/duo-link-4/id1103672387/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/zende/id6751255298/reviews)** |
| Number of ratings | **513** | 3 |
| Positive reviews | 19.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | Free |
| Size | 123 MB | 29 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [PNY](https://appshunter.io/developer/1103672386) | [Matthew Kerr](https://appshunter.io/developer/1831569707) |

## 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


### Zende

[App page](https://appshunter.io/ios/app/zende/id6751255298)

Cultivate inner calm and emotional well-being with guided exercises for stress reduction, gratitude, and self-compassion. Explore techniques like breathing practices, cognitive reframing, and journaling to enhance your daily mood and resilience.

**Highlights:** Calm exercises, Grounding practices, Mood boosting activities, Self-compassion techniques, Cognitive reframing, Gratitude journal, Personal journal

**Features:** macOS Compatibility

**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 Zende free?

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

### Which has better reviews, DUO LINK 4 or Zende?

Zende is rated higher. DUO LINK 4 averages 2.1 out of 5 from 513 ratings, while Zende averages 5.0 from 3 ratings.

### Do DUO LINK 4 or Zende have ads?

Neither DUO LINK 4 nor Zende 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.*