I think other reviewers for this version may be confused...overall excellent app. Smooth synchronization, drag and drop functionality, and feature full based on the web-based version.
It absolutely synchronizes with iCloud Drive (a previous reviewer said it did not, so make sure you have your iCloud Drive enabled). You can also delete a card (archive it, then a delete option pops up...again a previous reviewer said this wasnt possible). I havent tried the widget, but even if one does not exist, I would give this app 5 stars...and not a 1 star review like a previous reviewer, given that the primary app and functionality is 95% of what were reviewing.
This app is something I use for my entire family and extended family to (using multiple teams and boards) keep track of chore lists, goals, vacation planning, etc.
Definitely a 5 star app and hope the people at Trello keep up the good work!!