I just added someone as a user to Tithe.ly and the app dashboard. Currently in order to add someone to Tithe.ly features you need to go to the person icon at the bottom left, click My Organization and then add someone as a user. At this point there are user permission choices of Locations, Administration, Events, Giving, Messaging, People, and Pay. Basically all the icons on the left except the app. But in order to add that person to the app you need to click on the app icon first, then click the person icon at the bottom left which now has different choices, click on User Details and add someone there. This is confusing especially when I don't do this that often.
It would make things so much easier if under the My Organization, Users, User Permissions, there is a choice to add a user to the app.