Switch tenant or user
A possibility to switch between tenants or users would be practical if you work on different tenants. Such a solution is already implemented with your OneDrive App in iOS
Craig Humphrey commented
As per Kristin - you can already switch between accounts.
But what if the same account has access to multiple tenants?
Absolutly !!! Need this feature...
Once you are signed in, from Settings tab there is a "Add or Switch Account" button that can take you to the page to switch tenant or user.