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.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Sortd - Rated the #1 App for Gmail
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Drag for Gmail - Transform Gmail into organized To Do lists (like Trello)
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Flow-e - Turn your Gmail or Office365 inbox to a Visual Task Board.