Planyway is a powerful calendar and timeline that lives inside your Trello.
Visually manage your and your team schedule. Connect it with Google Calendar, Outlook, Apple Calendar etc.
Drag Pro superpowers your inbox. It transforms your Gmail into organized To Do lists like Trello, in Gmail. With Drag Pro, you can also organize tasks, sales, marketing, projects and more, all inside your Inbox. It makes the day spent in your inbox sooooo much easier. Mashable, Lifehacker, Google, and over 30,000+ daily active users agree too :)
Agile Tools for Trello is a free power-up which brings a bunch of useful features for Agile teams directly into your Trello boards (no browser plugins required!)
* Story Points on cards- including 1-click import of points from card titles
* Work in Progress (WIP) Limits for your lists
* Card time in list and Slow card highlighting
Trellinator is an open source framework for automating Trello using Google Apps Script