Microsoft To-Do - Task management tool
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Gusto - Gusto. Payroll, benefits and compliance in one integrated product. We're here to change how the world works, and put people first.
TaskPaper - Plain text to-do lists for Mac
Thrive - Thrive is an intuitive tool to manage your business using the latest trends in Project Management, Dashboards, Customer Relationship Management & Accounting
Magnetic - Magnetic is an all-in-one agency management software built for productivity.