To Do - Simple As Pen & Paper
Closest thing to PEN AND PAPER TO DO LISTS.
There is NO NEED TO SIGN UP. Just jot down and save.
This is the MOST SIMPLE and EASIEST To Do List app you will find around.
Disclosure: "To Do" is not officially affiliated or endorsed by any brands mentioned. "To Do" only lets you write down items you have found and tasks you need to do in a simple way.