Remember The Milk For Android, iOS
Users can simply add on tasks due today, tomorrow or overdue. Once the task is completed, it is marked as such. Tasks can be postponed, priorities set and a weekly planner can be created as well. Remember the Milk will also show the number of times a task is postponed. This app's interface is polished and easy to navigate, it's great at helping keep appointments, and with a subscription, it can synchronize with multiple devices.