One intuitive workspace to manage your Emails, To-do's, Projects, Sales, Client Service, CRM and Teamwork ... right in GMAIL!
Missive - Team communication app now supporting FB, Twitter & SMS
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.
Spike - Spike solves businesses' communication chaos by bringing together email, team chat, collaborative docs, and meetings, into one feed.
Drag for Gmail - Transform Gmail into organized To Do lists (like Trello)
Mailtrim - Email lives forever!. Reinvigorate your emailing experience with the best free email client, the Mailtrim
KanbanMail - A Kanban board for your emails.