Create simple tasks, or checklists and projects with sub-tasks.Cult of Mac – Best Task Manager for iOS.There is no wrong way of using 2Do, and unlike other to-do apps, it won’t force you in adhering to a particular task management methodology. With its extremely simple-to-use interface and a comprehensive and flexible set of powerful features, it lets you focus on what’s most important to you: your life. 2Do lets you take a completely different approach to managing your tasks.