Comparison

STRUCT Construction Calculator vs Winmail.dat Opener · Viewer

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

Head to head
About

STRUCT Construction Calculator

Features
Read full description

STRUCT — Construction Calculator Make your construction projects faster, easier, and more accurate. ProStruct is an all-in-one construction calculator designed for contractors, builders, engineers, architects, and DIY enthusiasts. Whether you’re planning a small home renovation or managing a large construction site, ProStruct helps you calculate materials, dimensions, and costs with confidence. All-in-One Construction Tools Simplify your daily work with a complete set of smart calculators: • Concrete volume calculations • Cement, sand, and material ratios • Brick and block quantity estimation • Wall and surface area calculations • Flooring and tiling measurements • Roofing calculations • Paint coverage estimation • And more essential tools for construction tasks Get instant results with clear formulas, helping you avoid costly mistakes and reduce material waste. Fast, Accurate & Reliable • Precise calculations in seconds • Built for real-world construction needs • Helps optimize materials and save costs Simple & Efficient Design Designed for speed and ease of use: • Clean, intuitive interface • Quick input and instant results • No clutter, no unnecessary features Just powerful tools when you need them most. Why Choose STRUCT? • All essential construction calculations in one app • Easy to use for professionals and beginners • Saves time, money, and effort on every project Download ProStruct today and take control of your construction calculations with confidence.

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/

Screenshots

STRUCT Construction Calculator3 screens
Winmail.dat Opener · Viewer4 screens

Verdict

The call

The clearest difference is in-app purchases: STRUCT Construction Calculator at none against Winmail.dat Opener · Viewer's 3. STRUCT Construction Calculator also leads on iOS requirement (13.0 vs 17). Winmail.dat Opener · Viewer's advantage is update cadence (every 9 days vs every 4 months). On price, 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. STRUCT Construction Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

STRUCT Construction Calculator ships an update every 4 months, Winmail.dat Opener · Viewer every 9 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
STRUCT Construction Calculator versus Winmail.dat Opener · Viewer: the parameters behind the verdict, then further details
ParameterSTRUCT Construction CalculatorWinmail.dat Opener · Viewer
PriceFreeFree
Rating—5.0 (6 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—6 — better
Update frequencyEvery 4 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Paid
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS13.0 — better17
Further details — not scored
Size16 MB16 MB
Age rating4+4+
DeveloperMOBILEXAPPS MB延平 陈

In-app purchases

None

STRUCT Construction Calculator

No 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

Questions

Is STRUCT Construction Calculator free?
STRUCT Construction Calculator is free to download, with no in-app purchases.
Is Winmail.dat Opener · Viewer free?
Winmail.dat Opener · Viewer is free to download, with in-app purchases available.
Do STRUCT Construction Calculator or Winmail.dat Opener · Viewer have ads?
Neither STRUCT Construction Calculator nor Winmail.dat Opener · Viewer shows ads.
Which is updated more often, STRUCT Construction Calculator or Winmail.dat Opener · Viewer?
STRUCT Construction Calculator ships an update every 4 months, and Winmail.dat Opener · Viewer every 9 days. Most recently, STRUCT Construction Calculator was updated on November 5, 2026 and Winmail.dat Opener · Viewer on October 31, 2026.

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