Winmail Viewer (“the app”) opens e-mail container files — winmail.dat (TNEF), Outlook MSG and OFT, EML and EMLX, and MHT/MHTML web archives — and shows the message and its attachments. This policy explains what the app does and does not do with data, on Android and on iOS.
Every file is read by the app’s own parser, entirely on your device. The files you open, the messages inside them, their attachments, and the names and addresses they contain are never uploaded; the developer has no access to them and no server is involved.
So that you can reopen them, recently opened files are kept as private copies inside the app’s own storage on your device. Removing a file from the Recent list, clearing the list, or uninstalling the app deletes those copies. Attachments are handed to another app, saved, or shared only when you ask, one file at a time.
Remote images in HTML e-mails are blocked by default, because loading them can tell the sender that you opened the message. They load only when you tap Load on a message, or if you turn on Always load remote images in Settings.
1. Advertising. The app shows ads via Google AdMob. The ads SDK may collect device identifiers (the Android advertising ID, or on iOS the IDFA — only if you allow tracking), coarse location derived from the IP address, and diagnostic signals to serve and measure ads. In the European Economic Area, the United Kingdom and regulated US states, ads are requested only after you make a choice in the consent dialog (Google UMP). On iOS, the system’s App Tracking Transparency prompt asks before the IDFA is used, and your answer can be changed at any time in iOS Settings → Privacy & Security → Tracking.
Google’s policy: policies.google.com/privacy
2. Analytics and crash reporting. The app uses Google Firebase Analytics and Crashlytics to understand which features are used and to fix crashes. Analytics events record the shape of an action only — for example that a file of a given format and approximate size was opened, or that a setting was changed — never file names, subjects, addresses, message content or attachments. Crash reports contain stack traces and device model information, not the file being viewed.
3. Notifications (optional, off by default). If you turn on App announcements in Settings, the app registers with Firebase Cloud Messaging (via Apple Push Notification service on iOS) so it can receive occasional announcements. Turning the switch off unsubscribes. Notifications never contain anything about your files.
Firebase’s policy: firebase.google.com/support/privacy
On Android the app uses the INTERNET permission (for ads,
analytics and crash reporting) and, only if you turn on announcements, the
notification permission. On iOS it asks only for notification permission,
when you turn on announcements, and for tracking permission through the
App Tracking Transparency prompt. Files reach the app only when you pick
one or open one in it from another app.
The app is a general-audience utility and does not knowingly collect personal information from children under 13.
Everything the app stores (recent-file copies and settings) is on your device and is deleted by clearing the Recent list or uninstalling the app. For questions about data held by the services above, contact us and we will help.
Changes to this policy will be posted at this address with a new effective date.