That are often paid
  1. Paper
  2. Wunderlist
    The best todo list app is the one you're currently regularly using. And here we are.
  3. Annotate
  4. ia Writer
  5. NY Times Cooking
    In its own league as a recipe app. Content and usability are paramount. Cross platform even better.
  6. Frazy Numbers
    Easy way to make sure you don't lose basic arithmetic and mental math abilities.