New Microsoft Outlook app version for Android, iOS, and MacOS - June 26

I find the Outlook app useful but annoyingly it posts ads in my inbox I don't see in my main PC Outlook app.

That is because the Android/iOS version is the equivalent of New Outlook for the Desktop which does have Ads in the message list. Unless you are a subscriber to some Microsoft service.

The "New Outlook" is now called just "Outlook", the usual MS naming confusion.