Comparison

The Document Converter vs Winmail Viewer

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

Head to head
About

The Document Converter

Effortlessly transform files into various document and image formats like PDF, DOCX, and JPG. Simply select your input, choose the desired output, and convert in seconds. Save, share, or open your converted files directly in other applications.

Highlights
  • Convert to PDF, DOCX, JPG, TXT, and more
  • Supports dozens of input formats
  • Save, share, or open converted files
  • In-app file browser
  • AirDrop support
  • Cloud and local conversion options
Features
Read full description

Easily convert your files to nearly any document format! 1. Select your input file 2. Choose your output format ( DOCX, PDF, JPG, TXT etc. ) 3. Convert! It will only take a few seconds. 4. Save your file, or open it in Office, Drive, Dropbox, etc! Here are the output formats you can choose from: DOC, DOCX, HTML, ODT, PDF, RTF, TXT, JPG, PNG, JPEG, PNG You can convert from dozens of input formats, here are some of the most popular formats we support converting from: • Documents: ABW, DJVY, DOC, DOCM, DOCX, DOT, DOTX, HTML, HWP, LWP, MD, ODT, PAGES, PDF, RST, RTF, SDW, TEXT, TXT, WPD, WPS, ZABW and more! • Ebooks: AZW, AZW3, AZW4, CBC, CBR, CBZ, CHM, EPUB, FB2, HTM, HTMLZ, LIT, LRF, MOBI, PDB, PML, PRC, RB, SNB, TCR, TXTZ and more! • Images: HEIC, JPG, JPEG, PNG, ICO, SVG, EPS, BMP, GIF, NEF, TIFF and more! • Spreadsheets: CSV, XLS, XLSX and more! • Presentations: PPT, PPTX, KEY, PDF and more! Save, Share or Open your converted files in your favorite apps immediately. Browse your previously converted files with our in-app file browser. You can even AirDrop your files right to your Mac or another device. Conversions usually take less than 15 seconds! Conversion is done on a secure cloud server, which makes conversion easier, faster and much more battery-friendly. You must have an internet connection to use this app. Files are immediately deleted from the server after conversion. While the files are immediately deleted after conversion or cancellation, you should be aware that by using this app, you agree that your files will be sent over to internet from the app to the conversion server. We've also recently added support for local conversions for many popular conversion types. These conversions don't require a server, and are usually done almost instantly! We are continuing to add support for more local conversions with each update. This app includes an optional auto-renewable subscription (Premium Pass): Premium Pass beings with a free trial period, then an auto-renewable monthly subscription when trial ends. Payment will be charged to your Apple account at confirmation of purchase and will automatically renew (at the duration/price selected) unless auto-renew is turned off at least 24 hrs before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your Apple Account Settings after purchase. Any unused portion of the free initial period will be forfeited when you purchase a subscription. Privacy Policy: https://float.support/the-document-converter/privacy Terms of Use: https://float.support/the-document-converter/terms

About

Winmail Viewer

Effortlessly open and view various email attachment formats, including Winmail.dat and MSG files. Extract embedded documents and images, and manage your files with integrated storage. Supports a wide range of email and document types for seamless access.

Highlights
  • Open Winmail.dat, MSG, OFT, XPS/OXPS, and EML files
  • Extract attachments like PDFs and Office documents
  • View formatted messages with original layout
  • Search messages by subject, sender, or keyword
  • Save and organize files with SwiftData storage
  • Dark Mode support
  • iOS Files app integration
Features
Read full description

Open and view Winmail.dat (Microsoft TNEF), MSG, OFT, XPS/OXPS, and EML files instantly on iPhone and iPad. Access Outlook-generated attachments, decode hidden content, and extract files in seconds. Winmail Viewer is designed to open Microsoft Outlook and Exchange email formats that many apps can’t read. Whether you receive a Winmail.dat (TNEF) attachment or an Outlook MSG/OFT message file, the app decodes and displays the full content — including formatted messages and embedded attachments — so nothing is lost. Open files directly from Mail, Files, AirDrop, or any supported app, and instantly access the message body, documents, and images inside. SUPPORTED FILE TYPES • Winmail.dat (Microsoft TNEF) — Decode Transport Neutral Encapsulation Format files generated by Outlook and Exchange • MSG — Open standalone Microsoft Outlook message files with full formatting and attachments • OFT — View Outlook email template files • EML — Read standard email message files from most email clients • XPS / OXPS — Open Microsoft XML Paper Specification documents with a smooth, PDF-like reading experience WHAT YOU CAN EXTRACT • Attachments including PDF, Word (DOC/DOCX), Excel (XLS/XLSX), PowerPoint (PPT/PPTX) • Images (JPG, PNG, GIF, TIFF, and more) • Rich Text (RTF) and HTML-formatted messages • Embedded files and hidden Outlook content KEY FEATURES • Instantly open Winmail.dat (TNEF), MSG, OFT, XPS/OXPS, and EML files • View fully formatted messages with original layout preserved • Extract and share attachments in seconds • Reply to or forward messages directly from the app • Search by subject, sender, or keyword • Save and organize files with fast SwiftData storage • Dark Mode for comfortable reading • Full integration with the iOS Files app No more “winmail.dat” confusion. Open, decode, extract, and share Outlook attachments effortlessly. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

The Document Converter4 screens
Winmail Viewer4 screens

Verdict

The call

The Document Converter and Winmail Viewer both sit at 4.7 stars, but that hides the real split: 100% of Winmail Viewer's written reviews are positive against 36% of The Document Converter's. Winmail Viewer also leads on update cadence (every 9 days vs every 5 months). The Document Converter's advantage is ratings volume (6K vs 19) and iOS requirement (15.6 vs 17). On price, rating, 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

Both are free to download. The Document Converter sells 5 in-app purchases, starting at $2.99 per month and Winmail Viewer sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for The Document Converter against 4.7 for Winmail Viewer. That said, the two scores are not equally well evidenced: The Document Converter has 6K ratings behind it against 19, so its average is the more settled of the two. Written reviews are what separate them: 36% of The Document Converter's written reviews are positive against 100% of Winmail Viewer's.

UpkeepUpdate frequency

The Document Converter ships an update every 5 months, Winmail Viewer every 9 days. The most recent releases landed on October 29, 2026 and October 22, 2026 respectively.

Scorecard4 real differences · 6 level
The Document Converter versus Winmail Viewer: the parameters behind the verdict, then further details
ParameterThe Document ConverterWinmail Viewer
PriceFreeFree
Rating4.7 (6K ratings)4.7 (19 ratings) — better
Positive reviews36.2% of reviews100.0% of reviews — better
Number of ratings6K — better19
Update frequencyEvery 5 monthsEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.6 — better17
Further details — not scored
Size44 MB25 MB
Age rating4+4+
DeveloperFloat Tech, LLC延平 陈

Customer experience

The Document Converter

All ratings5,936 ratings
Positive92.3%
Neutral2.0%
Negative5.8%
Written reviews293 reviews
Positive36.2%
Neutral3.1%
Negative60.8%

Winmail Viewer

All ratings19 ratings
Positive94.7%
Neutral0.0%
Negative5.3%
Written reviews15 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

The Document Converter

Reported bugs

3 issues
  • Conversion process gets stuck or fails
  • Corrupted output files
  • Compatibility issues with newer iOS versions

Requested features

4 requests
  • Add support for more file formats
  • Improve file management and organization
  • Provide offline conversion capabilities
  • Introduce a more transparent pricing model

Winmail Viewer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

The Document Converter

Subscriptions2
  • Premium Pass3 Days trial$2.991 Month
  • Premium Pass7 Days trial$3.491 Month
One-time3
  • Lifetime Pass$8.99
  • Lifetime Pass$19.99
  • Lifetime Pass Promo$29.99
4 purchases

Winmail Viewer

Subscriptions3
  • Premium Monthly$1.991 Month
  • Premium Weekly$1.997 Days
  • Premium Yearly$5.991 Year
One-time1
  • Lifetime Premium Access$9.99

Questions

Is The Document Converter free?
The Document Converter is free to download, with in-app purchases available.
Is Winmail Viewer free?
Winmail Viewer is free to download, with in-app purchases available.
Which has better reviews, The Document Converter or Winmail Viewer?
Winmail Viewer is rated higher. The Document Converter averages 4.7 out of 5 from 6K ratings, while Winmail Viewer averages 4.7 from 19 ratings.
Do The Document Converter or Winmail Viewer have ads?
Neither The Document Converter nor Winmail Viewer shows ads.
Which is updated more often, The Document Converter or Winmail Viewer?
The Document Converter ships an update every 5 months, and Winmail Viewer every 9 days. Most recently, The Document Converter was updated on October 29, 2026 and Winmail Viewer on October 22, 2026.

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