Comparison

USB Sharp vs U

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

Head to head
About

USB Sharp

Transform your iPhone or iPad into a portable wireless storage disk for efficient file management. Upload multiple files via Chrome and Firefox, extract encrypted RAR archives, and organize documents, photos, and videos with ease.

Highlights
  • Portable wireless storage
  • File management
  • Multiple file upload
  • Encrypted archive extraction
  • Document reader
  • Photo viewer
  • Video player
Features
Read full description

USB Sharp can turn your iPhone, ipad, ipod into a large Capacity, Portable and Wireless storage disk, Facilitate and efficient manage of your files! -------------------------------------------------------- V1.1.1 Updates 1. Chrome and Firefox Supported upload multiple files 2. Extract files from encryption .rar -------------------------------------------------------- V1.1.0 Updates ** Optimization pdf reader ** Support for importing videos/photos to Photo Library ** Support for exporting video from Photo Library -------------------------------------------------------- V1.0.4 Updates ** Search file(folder) name function added ** Picture Viewer Improved ** Unzip type added -------------------------------------------------------- V1.0.3 Updates New Features: ** add authentication for local login ** add authentication for wifi transfer ** Sorting by file size -------------------------------------------------------- V1.0.2 Updates * E-book reader (.epub) * Encryption folder, protect your files * Images thumbnail * Full screen view files Supported -------------------------------------------------------- V1.0.1 Updates * Open files in other applications specifically as follows: **** Facilitate and efficient manage files * Sorting by file name、create time and file type * View, copy, move, delete, rename, email, zip Compression and unzip files/folders * Extract all files from a compressed .zip file * Glide deleting function * Select all and DeSelect all * Transferring files by wifi and itunes file sharing * Email multiple files, folder Supported * Photo import Supported * Landscape mode supported * iPad-compatible **** Facilitate and efficient view files * Photo View, Zoom, move * Players, support mp3、m4a、aac and mp4 * Document reader, .pdf .rtf .rtfd .doc .docx etc * Multi-touch Supported, Zoom files * Bookmark supported, fast file location **** Facilitate and efficient edit plain files * Convert plain file encoding (Unicode,UTF-8 etc) * Plain file content copy, cut, paste and replace * External file copy and paste **** Add plain text(default encoding UTF-8), photos(from Camera) and folders **** Support Simplified Chinese and English USBSharp support list of file types: e-book: .epub Plain text: .txt Document: .pdf .csv .rtf .rtfd .doc .docx .xls .xlsx .ppt .pptx (office 2003 or later) Image: .png .jpg .jpeg .gif .bmp .xbm .tif .tiff Audio: .mp3 .m4a .aac Video: .mp4 .mov .m4v .3gp Web: .htm .html .xhtml Compressed: .zip .rar

About

U

Organize and manage files from your iPhone or iPad on external accessories. Features include a photo viewer with backup options, a music player with playlist generation, and robust file management tools like copy, move, and rename.

Highlights
  • Organize files on external accessories
  • Photo viewer with backup export
  • Music player with folder-based playlists
  • Copy, move, delete, and rename files
  • File transfer with Dropbox
  • Open files in other applications
Features
Read full description

U-Drive is one of the most capable application on your iOS device. It allows you to organize files from iPhone to external accessory. Features - Photo Viewer Tile view select to export photos for backup Short-key to instantly save photos into Camera Roll - Music Player Supports common format, such as AAC/AIF/MP4/M4A/MP3 Generates playlist of songs in the same folder - File Management Intuitive UI to manage files on iPhone/iPad Actions including Copy/Move/Delete/Rename File transfer between iOS devices and Dropbox Open-in allows user to open certain file type in another App

Screenshots

USB Sharp2 screens
U1 screens

Verdict

The call

The clearest difference is in-app purchases: U at none against USB Sharp's 6. U also leads on ads (none vs shown) and iOS requirement (9.0 vs 13.0). USB Sharp's advantage is review sentiment (53% vs 24%). On price, rating, ratings volume and update cadence 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 Sharp sells 6 one-off in-app purchases. U asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

U holds the better App Store score, 3.3 against 3.1. Both are backed by a comparable volume of ratings — 18 and 19 respectively. Written reviews complicate that: 53% of USB Sharp's written reviews are positive against 24% of U's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

USB Sharp ships an update every 3 weeks, U every 5 weeks. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.

Scorecard5 real differences · 5 level
USB Sharp versus U: the parameters behind the verdict, then further details
ParameterUSB SharpU
PriceFreeFree
Rating3.1 (18 ratings)3.3 (19 ratings) — better
Positive reviews53.2% of reviews — better23.8% of reviews
Number of ratings1819 — better
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.09.0 — better
Further details — not scored
Size55 MB46 MB
Age rating4+4+
Developer锦文 游Mei-Hui Wang

Customer experience

USB Sharp

All ratings18 ratings
Positive44.4%
Neutral11.1%
Negative44.4%
Written reviews111 reviews
Positive53.2%
Neutral6.3%
Negative40.5%

U

All ratings19 ratings
Positive57.9%
Neutral10.5%
Negative31.6%
Written reviews42 reviews
Positive23.8%
Neutral19.0%
Negative57.1%

In-app purchases

6 purchases

USB Sharp

One-time6
  • Remove ads$0.99
  • Music Player$0.99
  • Dropbox$0.99
Show 3 more
  • Video Player$0.99
  • SkyDrive$0.99
  • Full Version$2.99
None

U

No in-app purchases

Questions

Is USB Sharp free?
USB Sharp is free to download, with in-app purchases available.
Is U free?
U is free to download, with no in-app purchases.
Which has better reviews, USB Sharp or U?
U is rated higher. USB Sharp averages 3.1 out of 5 from 18 ratings, while U averages 3.3 from 19 ratings.
Do USB Sharp or U have ads?
USB Sharp shows ads; U does not.
Which is updated more often, USB Sharp or U?
USB Sharp ships an update every 3 weeks, and U every 5 weeks. Most recently, USB Sharp was updated on September 21, 2026 and U on September 18, 2026.

Other comparisons