Google Tasks Alternatives for Mac OS X

Todoist: To-Do list and Task Manager.

Things is a delightful and easy to use task manager.

A simple and friendly task manager written in Python.

Notational Velocity is a software for Mac OS X used for notetaking. It allows users to create notes using solely a computer keyboard and search them using incremental find.

TickTickis a cross-platform to-do list app & task manager helps you to get all things done and make life well organized.

fluxday is a user-friendly, free & opensource task & productivity management tool for growing startups.

Org-mode is an Emacs Mode for Notes, Planning, and Authoring.

todo.txt is software and operating system agnostic; it's searchable, portable, lightweight and easily Todo management software.

Avaza is a beautiful online software suite with modules for Project Management, Timesheets, Expenses & Invoicing. Access from anywhere, with any device.

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

Nitro is free open source task management software.

Quiver 3D Augmented Reality coloring apps: print, color and see your drawing in beautifully hand-animated 3D worlds.

Priority Matrix is a time management software application that is supported on a number of platforms, including Microsoft Windows, Mac OS X, Android, and iOS. It is based on the Eisenhower Method of arranging tasks by urgency and importance in a 2x2 matrix.

germ lets your team capture every great idea, brainstorm and turn them into actionable project plans.

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

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

Goalton.com is a platform for goal and task management.