Comparison

USB Disk vs USB Disk Pro

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

Head to head
About

USB Disk

Manage and view documents on your iPhone or iPad with this intuitive file manager. Access cloud storage, open various file types, and transfer files via iTunes. Advanced features like photo library access and PDF annotation are available via subscription.

Highlights
  • Cloud storage integration (Dropbox, Google Drive, OneDrive, Box)
  • Built-in document viewer for various file types
  • File transfer via iTunes
  • Create and open zip files
  • Swipe navigation and file previews
  • Email documents and download attachments
Features
Read full description

USB Disk lets you store, view and manage documents on your iPhone or iPad. It has an amazing built in document viewer and is very easy to use, with a simple and intuitive interface, yet it contains many powerful features. Drag and drop files in iTunes to transfer them to your iPhone or iPad, then view them anywhere! TUAW - "USB Disk is [...] a nicely designed one." Lifehacker - "The Best. USB Disk for iOS gives you a fast and easy way to transfer documents and images to your device." Apple - "New and Noteworthy" TOP REASONS TO BUY • Access Dropbox, Google Drive, OneDrive and Box. • Open and create zip files. • Store and view files. • Navigate using swipes (like Photos / iBooks app). • Thumbnails let you preview your files. • Copy, paste, cut, delete and create files. MORE FEATURES • View and download email attachments. • Restores last viewing position. • Full screen file viewer. • CBR and CBZ file viewer. • USB file transfers. • Background audio. • Slideshow with adjustable delay. • Fast scrolling, page up/down functionalities. • Email your documents. • Lock code. SUPPORTED FILE TYPES • PDF files. • Compressed files (zip, rar). • MS Office documents. • iWork documents. • Pictures (jpg, png, gif, ...). • eBooks (pdf, ePub, html, txt, ...). • Comics (cbr, cbz, pdf, ...). • Audio files (mp3, m4a, wav, ...). • Video files (m4v, mov, avi, mkv, ...). UPDATES Buy now and get free updates. SUBSCRIPTION All features listed above can be used without an in app purchase. Some advanced features require an active subscription. These include: • Access the device's photos library. • Protect the access to the app or specific files and folders with lock codes. • Access WebDAV and FTP servers. You can also configure SharePoint connections. • Edit simple text files. Also annotate PDF files. • Present files on external screens. Duration and price of each subscription are displayed in our storefront. All subscription costs will be charged to your Apple ID account, starting at the confirmation of purchase. Subscription automatically renews unless it is canceled at least 24 hours before the end of the subscription period. Your account will be charged for renewal within 24 hours prior to the end of the subscription period. It is not possible to cancel a subscription period once you have been charged for it. Any unused portion of a free trial period is forfeited as soon as a subscription is purchased. You can manage subscriptions and disable auto renewal by going to your account settings on the App Store after purchase. Terms of Service: https://imesart.com/legal/terms-of-service.php

About

USB Disk Pro

Manage and view documents on your iPhone and iPad with this powerful file manager. It offers a built-in viewer, easy file transfers via iTunes or Wi-Fi, and supports numerous cloud services. Secure your files with encryption and access them from various locations.

Highlights
  • Store and view files
  • Built-in document viewer
  • iTunes and Wi-Fi file transfers
  • Cloud service integration
  • File encryption and protection
  • Supports Files app
Features
Read full description

USB Disk Pro lets you store, view and manage documents on your iPhone and iPad. It has an amazing built in document viewer and is very easy to use, with a simple and intuitive interface, yet it contains many powerful features. Drag and drop files in iTunes to transfer them to your iPhone / iPad, then view them anywhere! TUAW - "USB Disk is [...] a nicely designed one." Lifehacker - "The Best. USB Disk for iOS gives you a fast and easy way to transfer documents and images to your device." Apple - "New and Noteworthy" TOP REASONS TO BUY • Store and view files. • Open multiple documents in different pages. • Restores last viewing position. • Navigate using swipes (like Photos / iBooks app). • Thumbnails let you preview your files. • Protect & encrypt files using Apple's Data Protection. • Supports the Files application (file provider for iOS 11+). MORE FEATURES • View and download email attachments. • Full screen file viewer. • Copy, paste, cut, delete and create files. • USB file transfers. • File transfers without iTunes over WiFi. • TV / VGA out. • Slideshow with adjustable delay. • Fast scrolling, page up/down functionalities. • Email your documents. • Lock code. • Download web files. • In app web browser. • Storage provider for other apps. • Background audio. BROWSING LOCATIONS • Local files. • Dropbox. • Google Drive. • OneDrive, SharePoint. • Box. • Evernote. • WebDAV and WWW servers. • FTP, SFTP servers. • Device's Photo Library. READING FILE TYPES • PDF files. • Compressed files (zip, rar). • MS Office documents. • iWork documents. • Pictures (jpg, png, gif, ...). • eBooks (pdf, ePub, html, txt, ...). • Comics (cbr, cbz, pdf, ...). • Audio files (mp3, m4a, wav, ...). • Video files (m4v, mov, avi, mkv, ...). EDITING FILE TYPES • ZIP files. • Small txt files. • PDF annotations. UPDATES Buy now and get free updates.

Screenshots

USB Disk4 screens
USB Disk Pro4 screens

Verdict

The call

The clearest difference is price: USB Disk at $0.99 against USB Disk Pro's $99.99. USB Disk also leads on chart position (#103 vs unranked) and review sentiment (71% vs 61%). USB Disk Pro's advantage is in-app purchases (none vs 10) and ads (none vs shown). On rating, ratings volume, update cadence 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

USB Disk costs $0.99 and USB Disk Pro $99.99 up front. USB Disk sells 10 in-app purchases, starting at $4.99 per month. USB Disk Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for USB Disk against 4.5 for USB Disk Pro. Both are backed by a comparable volume of ratings — 160 and 142 respectively. Written reviews are what separate them: 71% of USB Disk's written reviews are positive against 61% of USB Disk Pro's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on September 23, 2026.

Scorecard6 real differences · 5 level
USB Disk versus USB Disk Pro: the parameters behind the verdict, then further details
ParameterUSB DiskUSB Disk Pro
Price$0.99 — better$99.99
Rating4.6 (160 ratings) — better4.5 (142 ratings)
Positive reviews70.8% of reviews — better61.4% of reviews
Number of ratings160 — better142
Update frequencyEvery 3 monthsEvery 3 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank#103 — better—
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple TV, Apple Watch — better
Requires iOS12.012.0
Further details — not scored
Size170 MB189 MB
Age rating4+17+
DeveloperImesart S.a.r.l.Imesart S.a.r.l.

Customer experience

USB Disk

All ratings160 ratings
Positive91.3%
Neutral3.1%
Negative5.6%
Written reviews1,056 reviews
Positive70.8%
Neutral13.9%
Negative15.2%

USB Disk Pro

All ratings142 ratings
Positive89.4%
Neutral4.2%
Negative6.3%
Written reviews267 reviews
Positive61.4%
Neutral12.0%
Negative26.6%

User reviews

USB Disk

From 160 App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Efficient file management
  • 💡 Useful for storing and accessing documents
  • 👍 Convenient for transferring files between devices

Room to improve

  • 🐛 Crashes and stability issues
  • 💰 Expensive paid features
  • 🔒 Concerns about security and privacy
  • 🤔 Misleading app description

USB Disk Pro

From 142 App Store ratings

What we love

  • 🚀 Simple and reliable
  • 👍 Great for file storage and management
  • 🚀 Efficient file transfer
  • 👍 Versatile file support
  • 🚀 Excellent app for iPad/iPhone

Room to improve

  • 🐛 Occasional crashes and stability issues
  • 🐛 Compatibility problems with certain file formats
  • 🐛 Blurry document rendering
  • 🐛 Unreliable cloud/network connectivity

Bugs and requests

USB Disk

Reported bugs

3 issues
  • Inability to open certain file types
  • Compatibility issues with newer iOS versions
  • Syncing problems between devices

Requested features

4 requests
  • Support for more file types
  • Improved integration with cloud storage services
  • Ability to edit and annotate files
  • Better organization and folder management

USB Disk Pro

Reported bugs

3 issues
  • App closing unexpectedly when using certain features
  • Inability to open large files without crashing
  • Inconsistent file handling and naming

Requested features

4 requests
  • Advanced video player controls (fast forward, slow motion, zoom)
  • Basic image editing tools
  • Improved file/folder organization and naming
  • Integration with more cloud storage services

In-app purchases

10 purchases

USB Disk

Subscriptions1
  • USB Disk Pro Monthly7 Days trial$4.991 Month
One-time9
  • Audio Player +$0.99
  • Zip files support$0.99
  • Dropbox access$0.99
Show 6 more
  • Lock code$0.99
  • Text editor$0.99
  • Evernote access$0.99
  • Google Drive access$0.99
  • OneDrive access$0.99
  • WebDAV access$1.99
None

USB Disk Pro

No in-app purchases

Questions

Is USB Disk free?
USB Disk costs $0.99, and also offers in-app purchases.
Is USB Disk Pro free?
USB Disk Pro costs $99.99, with no in-app purchases.
Which has better reviews, USB Disk or USB Disk Pro?
USB Disk is rated higher. USB Disk averages 4.6 out of 5 from 160 ratings, while USB Disk Pro averages 4.5 from 142 ratings.
Do USB Disk or USB Disk Pro have ads?
USB Disk shows ads; USB Disk Pro does not.
Which is updated more often, USB Disk or USB Disk Pro?
USB Disk ships an update every 3 months, and USB Disk Pro every 3 months. Most recently, USB Disk was updated on September 23, 2026 and USB Disk Pro on September 23, 2026.

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