[tomc1985]

I just uninstalled Outlook for Android and my phone went from unusably-laggy to performing just like new. I had a full charge this morning and it is early afternoon and my battery was at 30%. Android's battery usage analyzer blamed 60% of that on Outlook. Opening Outlook and trying to use it meant 30+ seconds waits while I do simple things like "view the first page of my inbox" or "enter an email address into the To:" field.

You're saying that all the other options are worse??

(As for OWA, I regularly encounter full-page reloads for simple actions, am frequently logged out after my first click on anything, and it is almost obnoxiously slow for the speed of internet that we have. And this is Office365... previous versions of OWA were pretty good though)