Postbox is powerful, intuitive, ultra-customizable, speedy task manager. Developed by Postbox, Inc.
License: Commercial
EssentialPIM is an all-in-one personal information manager that excels in task and calendar management, while Postbox is primarily an email client with advanced email handling features. EssentialPIM is ideal for users looking for a comprehensive management tool, while Postbox is best for those who prioritize email organization and management.