Comparison

FileViewer USB for iPhone vs Winmail Reader

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

Head to head
About

FileViewer USB for iPhone

This app allows you to view, store, transfer, print, and email a wide variety of file types on your iPhone. It offers robust PDF viewing capabilities, supports numerous document and media formats, and integrates with cloud storage services.

Highlights
  • View over 30 file types
  • Robust PDF reader
  • File and folder management
  • Transfer via USB, Wi-Fi, AirDrop, Email
  • Cloud storage integration
  • Print documents and images
Features
Currently charting
Read full description

OVERVIEW • FileViewer USB is a file viewing, storage, transfer, printing, and email application for the iPhone. It includes one of the best PDF viewers for the iPhone and can also view many other file types. Files are transferred to FileViewer USB, via iTunes (Finder in Mac OS 10.15 Catalina), using a Wi-Fi or USB connection, or via email, AirDrop, the Files app, or connected devices such as thumb drives. FILE VIEWING • Supported file types for direct viewing or listening include portable document format (.pdf), Microsoft Word (.doc & .docx), rich text format (.rtf), plain text files (.txt), Microsoft Excel (.xls & .xlsx), Microsoft PowerPoint (.ppt & .pptx), iWork files (.pages, .key, & .numbers), HTML documents (.html & .htm), web archives (.webarchive), image files (.jpg, .jpeg, .jp2, single & multipage .tif/.tiff, .gif, .bmp, & .png), audio files (.m4a - Apple Lossless & AAC formats, .mp3, .wav, and .aif), video files (.mp4, .m4v, .mov, and .3gp), and other file types (.h, .m, .c, .java, .js, .csv, & .log). • PDF reader is fast, handles large pdf files, and opens password-protected pdfs. A thumbnail scroll bar feature facilitates viewing of long documents. Pages can be bookmarked. Other features include search, markup functionality, and table of contents view. • Photos from the Photos app on the iPhone can be transferred to and viewed in FileViewer. • Images can be copied from this app to the device's camera roll. Images in a given folder can be viewed as a slide show. • Landscape mode as well as zooming and panning is supported for viewing documents and images. FILE & FOLDER MANAGEMENT • Folders can be created to organize files. • Files and folders can be deleted and renamed as well as moved or copied from one folder to another. • Multiple files can be deleted or moved to a different folder at the same time. • FileViewer files can be opened in other apps on the iPhone. • File and folder lists can be filtered by file type, folders, search phrase, and first letter of name. • Files and folders can be sorted by date, size, and modification date (ascending & descending). • Global file search. • Zip archives can be transferred to and unzipped in FileViewer, providing easy one-step transfer of groups of files and/or folders. Zip archives can be created from files and folders stored in FileViewer USB. • Capability to save many document types as a PDF. • Dragging and dropping of files into folders. AIRDROP • With AirDrop, users can share files directly between supported iOS devices, as well as between an iOS device and computer. SOCIAL MEDIA • Post images and web pages to Facebook and Twitter. EMAIL • Files ≤ 20 MB can be emailed as an attachment. • Email attachments can be transferred from the Mail app to FileViewer USB. PRINTING • Documents and images can be printed to AirPrint/ePrint compatible printers. CLOUD STORAGE • Connectivity to iCloud Drive, Box, Dropbox, Google Drive, and Microsoft OneDrive. AIRPLAY & DISPLAYING FILES ON AN EXTERNAL DISPLAY • Using AirPlay, you can wirelessly stream iPhone screen output, via an Apple TV, to an HDTV. • Audio can be wirelessly streamed using AirPlay, via an Apple TV, to an audio system. REQUIREMENTS • iOS 15 (or higher). • Files are transferred to FileViewer USB, via iTunes (Finder in Mac OS 10.15 Catalina), using a Wi-Fi or USB connection, or via email, AirDrop, the Files app, or connected devices such as thumb drives. SECURITY • Use your fingerprint, Face ID, or a password to protect access to FileViewer USB. • Individual files are protected using iOS data protection. HELP • Help is built into and available from within the FileViewer USB application.

About

Winmail Reader

Easily open and manage "winmail.dat" attachment files on your iOS device. This app decodes the TNEF format, allowing you to view, save, share, or resend any contained attachments and the original email message.

Highlights
  • Decodes winmail.dat files
  • Lists all attachments and email message
  • Inbuilt quick-look preview for attachments
  • Save, copy, print, and share attachments
  • Resend decoded email with attachments
  • Create/add Outlook appointments to iOS Calendar
  • Add contact address cards to iOS Contacts
Features
Currently charting
Read full description

Winmail Reader is ultimate tool for reading "winmail.dat" attachment files on iPhones, iPads and iPod touch. Winmail Reader decodes "winmail.dat" file, and allows any attachments contained in them to be opened, read, saved or e-mailed. * * * Winmail Reader for Mac is also available on the Mac App Store. * * * Winmail.dat files are in fact TNEF format (Transport Neutral Encapsulation Format). Microsoft Outlook e-mail program for Windows send e-mails as TNEF. Most other e-mail programs, including Mail, do not understand TNEF. If your e-mail program doesn't understand TNEF, you may only see an attachment named "winmail.dat" that you cannot open. The easy-to-use solution to circumvent this problem is provided by Winmail Reader. FEATURES: ◆ Decodes "winmail.dat" files and list all attachments contained in it including email message. ◆ Inbuilt quick-look preview to view attachments. Tap on attachment button to popup quick-look preview. ◆ Allows attachments files to Copy to… another application, Save to Files, Copy, Print, share file to nearby iOS devices via AirDrop and more... Long press on attachment button to show share action options. ◆ Resend entire decoded email as it is with message and extracted attachments. ◆ Creates, edit and adds Microsoft Outlook Appointment and Meeting to iOS Calendar. It also reads embedded note. ◆ Creates and adds contact address card into iOS Contacts. ◆ Reads nested message in full RTF format as separate file.

Screenshots

FileViewer USB for iPhone4 screens
Winmail Reader4 screens

Verdict

The call

The clearest difference is rating: Winmail Reader at 4.5 against FileViewer USB for iPhone's 4.0. Winmail Reader also leads on ratings volume (256 vs 2) and price ($1.99 vs $3.99). On review sentiment, update cadence, 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

FileViewer USB for iPhone costs $3.99 and Winmail Reader $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Winmail Reader holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Winmail Reader has 256 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 56% of FileViewer USB for iPhone's written reviews are positive against 50% of Winmail Reader's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on September 25, 2026 and September 23, 2026 respectively.

Scorecard3 real differences · 8 level
FileViewer USB for iPhone versus Winmail Reader: the parameters behind the verdict, then further details
ParameterFileViewer USB for iPhoneWinmail Reader
Price$3.99$1.99 — better
Rating4.0 (2 ratings)4.5 (256 ratings) — better
Positive reviews55.6% of reviews — better50.0% of reviews
Number of ratings2256 — better
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#198#105 — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.6
Further details — not scored
Size17 MB2 MB
Age rating4+4+
DeveloperMitchell COHENRootRise Technologies Pvt. Ltd.

Customer experience

FileViewer USB for iPhone

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews63 reviews
Positive55.6%
Neutral12.7%
Negative31.7%

Winmail Reader

All ratings256 ratings
Positive87.9%
Neutral3.9%
Negative8.2%
Written reviews16 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

FileViewer USB for iPhone

No in-app purchases

None

Winmail Reader

No in-app purchases

Questions

Is FileViewer USB for iPhone free?
FileViewer USB for iPhone costs $3.99, with no in-app purchases.
Is Winmail Reader free?
Winmail Reader costs $1.99, with no in-app purchases.
Which has better reviews, FileViewer USB for iPhone or Winmail Reader?
Winmail Reader is rated higher. FileViewer USB for iPhone averages 4.0 out of 5 from 2 ratings, while Winmail Reader averages 4.5 from 256 ratings.
Do FileViewer USB for iPhone or Winmail Reader have ads?
Neither FileViewer USB for iPhone nor Winmail Reader shows ads.
Which is updated more often, FileViewer USB for iPhone or Winmail Reader?
FileViewer USB for iPhone ships an update every 4 months, and Winmail Reader every 4 months. Most recently, FileViewer USB for iPhone was updated on September 25, 2026 and Winmail Reader on September 23, 2026.
Which is more popular, FileViewer USB for iPhone or Winmail Reader?
FileViewer USB for iPhone currently peaks at #198 in the App Store charts, and Winmail Reader at #105. Chart position reflects recent download velocity rather than total install base.

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