Remember The Milk - Remember The Milk is a task and time management application for mobile devices.
aCalendar - TAPIRapps. aCalendar and aCalendar+ for Android. The fastest Android calendar.
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Etar - Material design open source calendar for Android.
Top Task List - Top Task List is simple, elegant and responsive task organizer.
Simple Calendar - A simple calendar with events (optional recurring and reminders), week numbers and a customizable...