2Do lets you take a completely different approach to managing your tasks. With its extremely simple-to-use interface.

Awesome notes is a powerful text and voice note taking application with many great features.

buckets.co helps you optimize workflows & collaboration at all levels.

Clear is a tasks, reminders and To-Do lists app.

Conqu is a simple yet powerful task management tool designed to help you conquer your inbox and get things done.

EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries, e…

Any.do is a life management and productivity app.

Azendoo is a project management & team collaboration platform.

Checkvist helps you create and share online outlines, project plans, online checklists, and task lists.

ColorNote is simple and easy to use. In any situation, you can quickly create notes and lists.

Doit.im is a Cross-platform Best Online GTD Service, which can sync with Phones.

Google Calendar is a cloud based calendar from Google.