Comparison

Cart Sample App 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

Cart Sample App

Features
Read full description

This app helps to coordinate family or group shopping. Setup is easy. You first create a group. All you have to do is enter a group name (e.g. »My Family«) and your own name (e.g. »Michael« or »Dad« or whatever). Your shopping list can now be saved and synchronised. To allow other family members to view and edit the shopping list, they have to join the group. To do so, a sharing code in the form xxxxx-xxxxx and a name must be entered. Once the setup is done, there are two operating modes: * In shopping mode, you work through the shopping list in the supermarket. You tick off every item that ends up in your shopping cart on the list until it is empty. If another family member has any last-minute requests, these items will appear on your shopping list directly. * In planning mode, you can add items to the list for the next shopping trip. The ‘history view’, which lists all the items you have ever bought, is particularly useful: As the same items are usually bought again and again, they can be added to the shopping list with a single tap. Shopping items are assigned to one of ten predefined categories (fruit and vegetables, bread, etc.). This makes it easier to organise the list. You can show and hide individual categories. For example, if you are in the fruit and vegetables section, you can display only the items you find there. This is particularly useful if your shopping list is very long. This app is free and serves as an example for learning Swift programming. The code is described in the book »Swift -- Das umfassende Handbuch« by Michael Kofler.

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

Cart Sample App4 screens
Winmail Viewer4 screens

Verdict

The call

The clearest difference is in-app purchases: Cart Sample App at none against Winmail Viewer's 4. Winmail Viewer's advantage is update cadence (every 9 days vs every 6 months) and device support (3 vs 1). On price, ads and iOS requirement 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 Viewer sells 4 in-app purchases, starting at $1.99 per month. Cart Sample App asks for nothing beyond the download.

UpkeepUpdate frequency

Cart Sample App ships an update every 6 months, Winmail Viewer every 9 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Cart Sample App versus Winmail Viewer: the parameters behind the verdict, then further details
ParameterCart Sample AppWinmail Viewer
PriceFreeFree
Rating—4.8 (20 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—20 — better
Update frequencyEvery 6 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS18.017 — better
Further details — not scored
Size2 MB25 MB
Age rating4+4+
DeveloperMichael KoflerBeijing Danbao Intelligent Technology Co., Ltd

In-app purchases

None

Cart Sample App

No in-app purchases

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 Cart Sample App free?
Cart Sample App is free to download, with no in-app purchases.
Is Winmail Viewer free?
Winmail Viewer is free to download, with in-app purchases available.
Do Cart Sample App or Winmail Viewer have ads?
Neither Cart Sample App nor Winmail Viewer shows ads.
Which is updated more often, Cart Sample App or Winmail Viewer?
Cart Sample App ships an update every 6 months, and Winmail Viewer every 9 days. Most recently, Cart Sample App was updated on October 30, 2026 and Winmail Viewer on November 5, 2026.

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