Comparison

USB Disk vs iReader Play

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

iReader Play

Read full description

iReader Play is a file management tool providing file Management, Backup and Browsing on an iPhone or iPad. While connecting with the required GO-Trust iReader microSD adaptor accessory, the App can transfer files between an iOS Device and the iReader microSD adaptor. Main features includes 1. Low cost memory expansion 2. Easy to use and no battery required 3. Makes your pictures, movies and music portable 4. Transfer files from your PC or Mac to your iPhone or iPad 5. Backup photos to external microSD storage. 6. Backup and Restore Contacts. 7. Manage files on iOS devices. (Copy, Paste, Move, Delete, Playback, Open In) 8. Works with any generic microSD card up to 128GB 9. Store files on your microSD card or in the iReader Play app. Due to Apple's security requirement, each App in the iOS system has it's own storage space. If you plan to use iReader Play to manage files in other Apps, please use 'Open-in' function to export files to the iReader Play App.

Screenshots

USB Disk4 screens
iReader Play1 screens

Verdict

The call

The clearest difference is price: iReader Play at Free against USB Disk's $0.99. iReader Play also leads on in-app purchases (none vs 10) and ads (none vs shown). On 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

iReader Play is free to download; USB Disk costs $0.99 up front. USB Disk sells 10 in-app purchases, starting at $4.99 per month. iReader Play asks for nothing beyond the download.

UpkeepUpdate frequency

USB Disk ships an update every 3 months, iReader Play every 6 weeks. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
USB Disk versus iReader Play: the parameters behind the verdict, then further details
ParameterUSB DiskiReader Play
Price$0.99Free — better
Rating4.6 (160 ratings) — better—
Positive reviews70.9% of reviews—
Number of ratings160 — better—
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS16.09.0 — better
Further details — not scored
Size200 MB27 MB
Age rating4+4+
DeveloperImesart S.a.r.l.GoTrustID Inc.

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

iReader Play

Not enough reviews yet to summarise bugs or requests.

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

iReader Play

No in-app purchases

Questions

Is USB Disk free?
USB Disk costs $0.99, and also offers in-app purchases.
Is iReader Play free?
iReader Play is free to download, with no in-app purchases.
Do USB Disk or iReader Play have ads?
USB Disk shows ads; iReader Play does not.
Which is updated more often, USB Disk or iReader Play?
USB Disk ships an update every 3 months, and iReader Play every 6 weeks. Most recently, USB Disk was updated on October 16, 2026 and iReader Play on October 8, 2026.

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