Kanmail - An email client that works like a kanban board.
Sortd - Rated the #1 App for Gmail
KanbanMail - A Kanban board for your emails.
Ora - Welcome to your team’s command center. A place to track projects. Tasks. Time. Commits. Status Reports. Your entire product or business! It's the fastest-growing productivity suite your team needs right now!
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.
Gmelius - Gmelius is the first collaboration platform designed for G Suite and your company's daily tools.