Microsoft Planner is a simple, light weight Project Management Application that Microsoft is offering as part of their Office 365 subscriptions. Planner lets you organize projects, share files, assign tasks, and chat with other collaborators. Microsoft Planner lets you easily bring together teams, tasks, documents, and conversations for better results. Planner makes it easy for your team to create new plans, organize and assign tasks, share files, chat about what you're working on, and get updates on progress.