Comparison

DUO vs Usb Transfer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DUO

Expand storage for your Apple devices and computers. Easily transfer files, back up contacts, and play media directly from the device. Free up space on your iPhone and iPad with this versatile storage solution.

Highlights
  • Expand iPhone/iPad storage
  • USB and Lightning connectors
  • Contact backup and restore
  • Independent music/video playback
  • Stream 1080p videos
  • File management
Features
Read full description

DUO-LINK/DUO-LINK R is a multi-functional storage device for Mac, PC, iPad, iPhone, and iPod touch. Duo-Link has a standard USB interface and a lightning connector for iPhone and iPad. Free up space on your iPhone and iPad. Transfer and share files between your iPhone, iPad & Mac or PC quickly and easily. DUO-LINK Functions: ● Contact list backup and restore. ● Supports independent music and video playback. ● Stream 1080p videos directly from Duo-Link ● File management operations such as copy, delete, export etc. ● Browse files store on DUO-LINK Drive. ● Browse local files stored within Duo-Link App. ● Transfer media and files from iPhone to Duo-Link Drive. Compatibility: ● iPad, iPhone, iPod Touch with lightning connector running iOS version 8.0 or later. ● PCs running Windows XP, Windows 7, and Windows 8. ● Mac computers running Mac OS 10.5 or later.

About

Usb Transfer

Features
Read full description

USB Transfer-Phone File – Your on-the-go transfer assistant Direct web transmission supports multi-person collaboration, mobile phone turns into a USB flash drive in seconds to achieve free transmission across devices, encrypted transmission, local transmission, privacy and security, batch sharing and intelligent file management, comprehensively improving efficiency and convenience. --Highlights-- 1. Direct web transmission, minimalist operation: no need to install software or log in to the account, you can use it by opening the browser, and the operation is simple and fast. 2. Mobile phone turns into a USB flash drive in seconds: transfer files through your mobile phone anytime, anywhere, break device restrictions, and make file sharing more free. 3. Browser web transfer: Upload and download files directly through the web page, say goodbye to cumbersome software installation. 4. Online preview: Support online preview of files, you can view the content without downloading, saving time and traffic. 5. One-time sharing of multiple files: Support batch upload and share of multiple files to improve transfer efficiency. 6. File classification management: Intelligently classify files, easy to find and manage, and keep documents organized. 7. Security guarantee: support encrypted transmission and LAN operation, higher privacy. The webpage is temporarily authorized to log in, no need to log in to any account, and there is no need to worry about account theft or privacy leakage in unfamiliar environments. Terms of Use: https://cms.fuguizhukj.cn/article/detail/usbiosgnzdxfxy.html Privacy Policy: https://cms.fuguizhukj.cn/article/detail/cyupgggnyszc.html USB Transfer-Phone File, redefines the way files are transferred, providing you with a more convenient and efficient file sharing experience!

Screenshots

DUO4 screens
Usb Transfer4 screens

Verdict

The call

The clearest difference is in-app purchases: DUO at none against Usb Transfer's 3. DUO also leads on iOS requirement (8.0 vs 12.0). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Usb Transfer sells 3 in-app purchases, starting at $2.99 per month. DUO asks for nothing beyond the download.

UpkeepUpdate frequency

DUO ships an update every 5 weeks, Usb Transfer every 3 weeks. The most recent releases landed on October 15, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 8 level
DUO versus Usb Transfer: the parameters behind the verdict, then further details
ParameterDUOUsb Transfer
PriceFreeFree
Rating1.9 (52 ratings) — better—
Positive reviews12.7% of reviews—
Number of ratings52 — better—
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS8.0 — better12.0
Further details — not scored
Size31 MB91 MB
Age rating4+17+
DeveloperGopod Group LimitedChangsha Fugui Bamboo Network Technology Co., Ltd.

In-app purchases

None

DUO

No in-app purchases

3 purchases

Usb Transfer

Subscriptions3
  • 月会员$2.991 Month
  • 季会员$3.993 Months
  • 年会员$9.991 Year

Questions

Is DUO free?
DUO is free to download, with no in-app purchases.
Is Usb Transfer free?
Usb Transfer is free to download, with in-app purchases available.
Do DUO or Usb Transfer have ads?
Neither DUO nor Usb Transfer shows ads.
Which is updated more often, DUO or Usb Transfer?
DUO ships an update every 5 weeks, and Usb Transfer every 3 weeks. Most recently, DUO was updated on October 15, 2026 and Usb Transfer on October 2, 2026.

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