# DUO LINK 4 vs Entire Today Master

DUO LINK 4 and Entire Today Master are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 13, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | DUO LINK 4 | Entire Today Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.1 (498 ratings)](https://appshunter.io/ios/app/duo-link-4/id1103672387/reviews)** | — |
| Number of ratings | **498** | — |
| Positive reviews | 19.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 123 MB | 43 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [PNY](https://appshunter.io/developer/1103672386) | [Adlan Dazaev](https://appshunter.io/developer/1730008982) |

## 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


### Entire Today Master

[App page](https://appshunter.io/ios/app/entire-today-master/id6744049513)

**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 Entire Today Master free?

Entire Today Master is free to download, with no in-app purchases.

### Do DUO LINK 4 or Entire Today Master have ads?

Neither DUO LINK 4 nor Entire Today Master shows ads.

### Which is updated more often, DUO LINK 4 or Entire Today Master?

DUO LINK 4 ships an update every 2 months, and Entire Today Master every 2 months. Most recently, DUO LINK 4 was updated on October 13, 2026 and Entire Today Master on September 9, 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.*