Still use a notebook for your to-do lists? ABC News checks out the best digital to-do list apps.

I tested many to-do list apps out there, but Microsoft To Do is still the best for me. Here's why I won't ditch it for any other app.

If you’re anything like me, you’ve tried every to-do list app and productivity system, only to find yourself giving up sooner rather than later because managing your productivity system ...