Comparison

USB Sharp vs I

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

I

Manage all your files on iOS devices with ease. This app allows you to exchange files between different devices and platforms, back up contacts and camera roll, and play media directly from your device. It supports a wide range of document, image, audio, and video file formats.

Highlights
  • File management for iOS devices
  • Cross-device file exchange
  • Contact and camera roll backup
  • Video and music playback
  • Image and document preview
  • Support for various file formats
Features
Read full description

The I-USBKey Pro is the best way to manage all your files on iOS devices,Exchanges files with different devices & platforms with ease. 1.Backup Contacts and Camera Roll. 2.Play Videos,Musics. 3.Preview Images,World. Supported File Formats: Document:DOC,XLS,PPT,TXT,else; Image:JPG,JPEG,BMP,GIF,else; Audio:MP3,AAC,AIF,else; Video:MP4,MOV,MKV,AVI,FLV,RMVB,ELSE;

Screenshots

USB Sharp2 screens
I2 screens

Verdict

The call

The clearest difference is rating: I at 5.0 against USB Sharp's 3.1. I also leads on in-app purchases (none vs 6) and ads (none vs shown). USB Sharp's advantage is ratings volume (18 vs 5). On price, review sentiment 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 Sharp sells 6 one-off in-app purchases. I asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

I holds the better App Store score, 5.0 against 3.1. Both are backed by a comparable volume of ratings — 18 and 5 respectively. Written reviews complicate that: 53% of USB Sharp's written reviews are positive against 50% of I'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, I every 9 days. The most recent releases landed on September 21, 2026 and June 4, 2026 respectively.

Scorecard7 real differences · 3 level
USB Sharp versus I: the parameters behind the verdict, then further details
ParameterUSB SharpI
PriceFreeFree
Rating3.1 (18 ratings)5.0 (5 ratings) — better
Positive reviews53.2% of reviews — better50.0% of reviews
Number of ratings18 — better5
Update frequencyEvery 3 weeksEvery 9 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.08.0 — better
Further details — not scored
Size55 MB40 MB
Age rating4+4+
Developer锦文 游zhong qibiao

Customer experience

USB Sharp

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

I

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

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

I

No in-app purchases

Questions

Is USB Sharp free?
USB Sharp is free to download, with in-app purchases available.
Is I free?
I is free to download, with no in-app purchases.
Which has better reviews, USB Sharp or I?
I is rated higher. USB Sharp averages 3.1 out of 5 from 18 ratings, while I averages 5.0 from 5 ratings.
Do USB Sharp or I have ads?
USB Sharp shows ads; I does not.
Which is updated more often, USB Sharp or I?
USB Sharp ships an update every 3 weeks, and I every 9 days. Most recently, USB Sharp was updated on September 21, 2026 and I on June 4, 2026.

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