Trello is a web-based project management application with a beautiful card-based UI.
Zenkit is a tool you can use to organize anything: Collaborate with your team, track projects, build databases, or simply manage your personal to-do lists. Zenkit is flexible enough to fit any workflow, and powerful enough to run your business on.
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 :)