Precious few task/todo apps have this exact combination of features I’m looking for:
* Native Mac, iOS, and Android apps, plus access via web
* Reminder notifications for native apps
* Start/defer dates AND due dates
* Option to recur from start/due dates or completed date
Todoist doesn’t support start dates. Things and OmniFocus support nearly all of these things, but aren’t available on Android. Nirvana doesn’t support notifications on desktop.