One of the main sticking points for me is how well an app does recurring tasks. In particular, not just fixed date recurrences, but the ability to set the next date off the last completion date. So many apps fail to offer this. Alas, I could find NO way to do a recurring task at all, in spite of them saying it can be done. So, much less checking on this nuance, I see no way of doing them at all. Fail. Moving on.