DayNight is described as 'To-do app that helps you to organize your day and improve your productivity. Managing your time better will relieve stress and anxiety and help you get more accomplished each day. The app is perfect for anyone who wants to spend less time organizing tasks and more' and is a todo list manager in the office & productivity category. There are more than 10 alternatives to DayNight for a variety of platforms, including Web-based, Mac, iPhone, Windows and Linux apps. The best DayNight alternative is Super Productivity, which is both free and Open Source. Other great apps like DayNight are Lunatask, WeekToDo, Amazing Marvin and FocusTide.