I use Blackberry Hub+ for all my communication needs, including
- primary work and personal email and multiple calendars
- Slack, Skype, Twitter, SMS, LinkedIn
- notification email addresses
I tried the Microsoft Outlook on Android for three weeks in August 2016 and a week in June 2017. The Outlook for Android calendaring requires internet to save/show events! This is unacceptable in a dynamic mobile world where internet is not available. Blackberry Hub+ stores/shows new/changed events (done on the phone) immediately even when the Internet is not available, and syncs when connectivity is back up.
In the end, the rock-solid Blackberry Hub+ is the clear winner for managing all my professional and personal communications and calendaring.
Blackberry Hub+ for all Android 5.0 and newer
The vast majority of active Android devices can use Blackberry Hub+, including fingerprint authentication.
I wish Blackberry Hub+ supported Outlook “Clutter” and Archiving in general
I get a lot of email from constantly changing groups of collaborators, students, and future prospects. Not to mention the avalanche of receipts, reminders, newsletters, and notifications.
I have found Google Inbox to be pretty good at sorting Priority/Inbox/Low Priority/Spam email, as well as Microsoft Office Focused/Inbox/Clutter/Spam separation. Notice that both these popular corporate & personal email providers separate email into 4 primary levels. Yet Blackberry Hub in its BB10 heyday did at most 3 levels, and Android Blackberry Hub+ has only 2 levels of email: general/spam.
The Outlook for Android app can recognize Priority vs. All email, and I wish Blackberry Hub+ would do so too.