FamCal - FamCal is an organized and managed calendar to track the family records like events, notes, and dates of births.
Business Calendar - Powerful and easy to use calendar app for Android including weather, widgets and tasks.
Power Planner - Record homework and class schedule.
FCorp My Calendar - Manage diary/note, schedule, todo, birthday, etc.
Sectograph - Sectograph app enables you to create a visual event tracker to keep track of all your upcoming events and due tasks right from the home screen.
AnCal - AnCal stores yours appointments, tasks and notes, which you can easily add and edit.