KanbanMail takes your inbox from a confusing mess and turns it into a clear action plan!
KanbanMail has gone through lots of improvements and optimizations throughout the last year. If you are looking for a way to optimize your email workflow, you should give it go.
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Sortd - Rated the #1 App for Gmail
Any.DO - The #1 task management app used by over 11 million people globally, Any.do is your free mobile and online task manager for Android, iPhone, Web and more.
Drag for Gmail - Transform Gmail into organized To Do lists (like Trello)
Microsoft To-Do - Task management tool
Flow-e - Turn your Gmail or Office365 inbox to a Visual Task Board.