Comparison

USB Sharp vs iTransfer

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

iTransfer

Securely transfer files between your device, cloud storage, and FTP servers. Manage, view, and share documents and photos with ease. Offers robust security features for business professionals.

Highlights
  • Cloud drive integration (iCloud, Dropbox, Box, OneDrive, GoogleDrive)
  • FTP, FTPS, SFTP support
  • Private key authentication for SFTP
  • File management (add, search, rename, move, delete)
  • View and play various file types
  • Email and print documents
  • Password protection
Features
Read full description

No. 1 App for file upload/download on iPhone/iPad! Most secure file download/upload tool for business and professional users. Supported features include: 1. Download files from your iCloud Drive. Save local files to iCloud Drive. 2. Upload/download files to/from FTP/SFTP/FTPS servers. 3. Upload/download files to/from DropBox, Box, OneDrive, and GoogleDrive. 4. Support both user name/password and Private Key authentication for SFTP. Support both PPK and PEM keys. Support importing keys from/exporting keys to iCloud Drive under iTransfer/keys folder. 5. Email files. 6. Manage files, including adding a folder, searching, renaming, moving or deleting files. 7. View supported files, including: PDF, DOC, EXCEL, PPT, image files, TXT, etc. 8. Open files using other Apps through “Open in”. 9. Play photo slideshows. 10. Support launching with a password. 11. Print documents. 12. Share photos on Facebook, Twitter and Weibo. With its simple interfaces, iTransfer provides the easiest way to transfer files on iPhone and iPad. If you have any questions, please visit: http://www.comcsoft.com/Portfolio/our_apps/iTransfer/iTransfer_overview.php.

Screenshots

USB Sharp2 screens
iTransfer4 screens

Verdict

The call

The clearest difference is rating: iTransfer at 4.1 against USB Sharp's 3.1. iTransfer also leads on ratings volume (214 vs 18). USB Sharp's advantage is update cadence (every 3 weeks vs every 4 months) and iOS requirement (13.0 vs 15.0). On price, review sentiment, ads and in-app purchases 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 and iTransfer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

iTransfer holds the better App Store score, 4.1 against 3.1. That said, the two scores are not equally well evidenced: iTransfer has 214 ratings behind it against 18, so its average is the more settled of the two. Written reviews complicate that: 53% of USB Sharp's written reviews are positive against 52% of iTransfer'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, iTransfer every 4 months. The most recent releases landed on September 21, 2026 and September 29, 2026 respectively.

Scorecard4 real differences · 6 level
USB Sharp versus iTransfer: the parameters behind the verdict, then further details
ParameterUSB SharpiTransfer
PriceFreeFree
Rating3.1 (18 ratings)4.1 (214 ratings) — better
Positive reviews53.2% of reviews — better52.1% of reviews
Number of ratings18214 — better
Update frequencyEvery 3 weeks — betterEvery 4 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size55 MB68 MB
Age rating4+4+
Developer锦文 游ComcSoft Corporation

Customer experience

USB Sharp

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

iTransfer

All ratings214 ratings
Positive78.5%
Neutral5.1%
Negative16.4%
Written reviews303 reviews
Positive52.1%
Neutral5.3%
Negative42.6%

Bugs and requests

USB Sharp

Not enough reviews yet to summarise bugs or requests.

iTransfer

Reported bugs

4 issues
  • Unable to add SFTP/FTP servers
  • Uploads/downloads fail randomly
  • Incompatible with certain file types
  • Crashes when trying to access servers

Requested features

4 requests
  • Landscape mode support
  • Ability to edit server configurations
  • Background upload/download support
  • Improved file browsing and selection

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
1 purchases

iTransfer

One-time1
  • Premium$4.99

Questions

Is USB Sharp free?
USB Sharp is free to download, with in-app purchases available.
Is iTransfer free?
iTransfer is free to download, with in-app purchases available.
Which has better reviews, USB Sharp or iTransfer?
iTransfer is rated higher. USB Sharp averages 3.1 out of 5 from 18 ratings, while iTransfer averages 4.1 from 214 ratings.
Do USB Sharp or iTransfer have ads?
Both USB Sharp and iTransfer show ads.
Which is updated more often, USB Sharp or iTransfer?
USB Sharp ships an update every 3 weeks, and iTransfer every 4 months. Most recently, USB Sharp was updated on September 21, 2026 and iTransfer on September 29, 2026.

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