Test 2 Learning curve
Getting a grip on how they work
Clear has almost no learning curve. Whether you use a trackpad or a mouse, creating lists, adding tasks and moving tasks between lists is easy. Likewise, Wunderlist uses familiar conventions and shortcuts to create lists and tasks. Doubleclicking a task enables access to deeper features like adding comments and tags.
TaskPaper’s learning curve is a fairly steep one because its interface is heavily based on keyboard shortcuts and text. Learn those, however, and you’re good to go.
The other three need a little understanding of Getting Things Done concepts to get the most out of them. If you have that, using them at a basic level is straightforward. To get the most from OmniFocus’s power and deep feature set, however, you’ll need to refer to its help documents and videos.