we mentioned Wunderlist Pro
Free users on Android and Windows now get the new Action Bar, which makes it easy to jump between projects and lists of nested to-dos, and to share to-dos with other people via email. Pro users ($5 per month or $50 per year) get unlimited subtasks for any to-do in your list, the ability to assign to-dos to other team members and Wunderlist users, and premium workspace backgrounds.
It’s no small coincidence that the launch of Wunderlist Pro takes place a day after Yahoo’s acquisition of Astrid, but even if that had nothing to do with it, the new features are welcome. You can read more about it at the link below, or grab the updated Android app right now at Google Play and the new Windows app direct from the developer.
Introducing Wunderlist Pro for Android & Windows [6Wunderkinder Blog]