Sortd - Rated the #1 App for Gmail
Get My Receipts by cloudHQ - Organize your receipts in one click
KanbanMail - A Kanban board for your emails.
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.
gfeed - Turn your Gmail into a social feed to read through faster
Gmelius - Gmelius is the first collaboration platform designed for G Suite and your company's daily tools.