Comparison

Winmail.dat Opener · Viewer vs DevIndex

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

Head to head
About

Winmail.dat Opener · Viewer

Easily open and extract attachments from Winmail.dat, .msg, and .oft email files directly on your device. This utility offers a private, offline solution with a one-time purchase, ensuring your data never leaves your phone.

Highlights
  • Open winmail.dat (TNEF) files
  • Open Outlook .msg and .oft files
  • Extract attachments (photos, PDFs, Word, Excel)
  • 100% on-device processing
  • One-time purchase, no subscriptions
  • Supports Dark Mode and Drag & Drop
Features
Read full description

Winmail.dat Opener Pro opens Winmail.dat (TNEF), .msg, and .oft Outlook email attachments on iPhone and iPad. Works fully offline with 100% on-device processing for maximum privacy. Multilingual support has been upgraded and optimized for fast, secure file access. The app safely unpacks Outlook winmail.dat (TNEF) files and opens .msg and .oft files directly on your device. All processing happens on-device, so your emails and attachments never leave your phone. Key features: • Open winmail.dat (TNEF), Outlook .msg, and .oft files. • Extract attachments including photos, PDFs, Word, and Excel files. • 100% on-device processing for maximum privacy. • Optimized for the latest iOS with Dark Mode and Drag & Drop. • Multilingual support fully upgraded and optimized. Supported formats: •Winmail.dat (TNEF) •Outlook Message (.msg) •Outlook Template (.oft) How to use: 1. Open the Mail app or Files app. 2. Tap the attachment (winmail.dat, .msg, or .oft). 3. Select Share and choose Winmail.dat Opener Pro. 4. View, print, or save your files instantly. No tracking. No cloud uploads. Just open your files — fast, private, and forever. We update regularly to ensure compatibility with the latest iOS versions. If you have any questions or feedback, feel free to contact us anytime. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

DevIndex

Features
Read full description

DevIndex - Your Ultimate React Native Library Discovery Tool Explore over 2,300+ React Native libraries from the official React Native Directory, all in one beautifully designed app. Key Features: AI-Powered Recommendations Get personalized library suggestions based on your project needs. Our AI analyzes your requirements and recommends the best packages. Comprehensive Library Database Access the complete React Native Directory with real-time data including GitHub stars, weekly downloads, version info, and more. Smart Filtering Filter libraries by: Platform compatibility Category: Navigation, UI Components, State Management, Animation, Storage, Networking, and more Search by name, description, or tags Detailed Library Information View complete details for each library: GitHub stats (stars, forks, issues) NPM download statistics Platform compatibility Expo support New Architecture support License information Direct links to GitHub, NPM, and documentation One-Tap Install Copy installation commands directly to your clipboard with a single tap. Beautiful Themes Choose from multiple themes including Light, Dark, and custom color schemes. Infinite Scroll Seamlessly browse through thousands of libraries with automatic loading. Always Up-to-Date Data synced directly from React Native Directory API. Perfect for: React Native developers iOS app developers Expo developers Mobile developers Download now and supercharge your development workflow.

Screenshots

Winmail.dat Opener · Viewer4 screens
DevIndex4 screens

Verdict

The call

The clearest difference is in-app purchases: DevIndex at none against Winmail.dat Opener · Viewer's 3. DevIndex also leads on iOS requirement (15.1 vs 17). On price, update cadence, ads 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. Winmail.dat Opener · Viewer sells 3 in-app purchases, starting at $1.99 per 7 days. DevIndex asks for nothing beyond the download.

UpkeepUpdate frequency

Winmail.dat Opener · Viewer ships an update every 9 days, DevIndex weekly. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 8 level
Winmail.dat Opener · Viewer versus DevIndex: the parameters behind the verdict, then further details
ParameterWinmail.dat Opener · ViewerDevIndex
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 9 daysWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaid—
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS1715.1 — better
Further details — not scored
Size16 MB37 MB
Age rating4+4+
Developer延平 陈Dao Duong

In-app purchases

3 purchases

Winmail.dat Opener · Viewer

Subscriptions2
  • Premium Weekly$1.997 Days
  • Premium Yearly$12.991 Year
One-time1
  • Winmail Opener Pro$19.99
None

DevIndex

No in-app purchases

Questions

Is Winmail.dat Opener · Viewer free?
Winmail.dat Opener · Viewer is free to download, with in-app purchases available.
Is DevIndex free?
DevIndex is free to download, with no in-app purchases.
Do Winmail.dat Opener · Viewer or DevIndex have ads?
Neither Winmail.dat Opener · Viewer nor DevIndex shows ads.
Which is updated more often, Winmail.dat Opener · Viewer or DevIndex?
Winmail.dat Opener · Viewer ships an update every 9 days, and DevIndex weekly. Most recently, Winmail.dat Opener · Viewer was updated on October 24, 2026 and DevIndex on October 16, 2026.

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