Todoist - Todoist is a to-do list that helps you get organized, at work and in life.

Reminder - A better way to keep track of your reminders 📝

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

Wonder - Your personal research assistant

EssentialPIM - EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and cloud applications.

X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.