USB Sharp vs iTransfer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Portable wireless storage
- File management
- Multiple file upload
- Encrypted archive extraction
- Document reader
- Photo viewer
- Video player
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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
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.
- 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
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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
Verdict
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
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.
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.
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.
| Parameter | USB Sharp | iTransfer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (18 ratings) | 4.1 (214 ratings) — better |
| Positive reviews | 53.2% of reviews — better | 52.1% of reviews |
| Number of ratings | 18 | 214 — better |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 55 MB | 68 MB |
| Age rating | 4+ | 4+ |
| Developer | 锦文 游 | ComcSoft Corporation |
Customer experience
USB Sharp
iTransfer
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
USB Sharp
- Remove ads$0.99
- Music Player$0.99
- Dropbox$0.99
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- Video Player$0.99
- SkyDrive$0.99
- Full Version$2.99
iTransfer
- Premium$4.99









