Scrumetic is a project management tool that helps software development teams practicing Scrum track tasks, manage sprints and plan releases.
Scrumetic clearly defines the integration points between the customer and developer roles making it the ideal tool to manage remote development teams.
Planning and Sprinting are the key integration points between Customers, Developers and their common goal - targeting a Product Backlog.

Scrumetic clearly defines these two integration points and the Customer and Developer roles.
Customers can create Stories and manage a Product Backlog, but only Developers can estimate how long those stories will take to develop.
Both however can motivate for Story Points during Sprint Planning sessions.
Customers can create Acceptance Test that will deem a Story to have been successfully completed, but only Developers can determine what tasks are required for getting a Story to meet an Acceptance Test.
Both however are affected by the team's sprint Velocity.