Question: best to do app on ios?
Answer: Microsoft To Do. A few years ago, Microsoft bought Wunderlist, and productivity-app aficianados lamented the long, drawn-out death of their favorite to-do list. ... 
Things 3. Things is one of the premium productivity apps on this list. ... 
Todoist. ... 
Evernote. ... 
Google Tasks. ... 
Any.do. ... 
Reminders.