Wikipedia
Actionspace
Actionspace is a software as a service (SaaS) task and project management application for SharePoint and Office 365 designed to help teams organise and track their work. The solution is business-centered and used mostly in companies and organizations of all sizes.
Actionspace is available both as a standalone web-based solution and a SharePoint add-in and Office 365 add-in. Both versions are offered with a 14-day free trial. The system resides on Microsoft Azure platform.