Sep 18, 2014 - Appyfurious today introduces 1-3-5 To-Do 1.0, its new productivity app for iOS and Android devices. With 1-3-5 To-Do, every iPhone user can now say no to never ending to-do lists. Finely designed and built to perfectly fit the new iOS 8, 1-3-5 To-Do is very simple to use. The app offers a completely new approach in task management by narrowing down daily to-dos to only 9 core items - 1 big task, 3 medium tasks and 5 small tasks. Tags used to describe the context of tasks.