Components
Open Tasks is an open source task management android application. It supports basic task management and provides a user friendly interface, it allows users to add task in a listed view and can also mark it as complete by holding it for a moment and flipping it from the left to the right side of the screen and also edit a task by flipping from the right to the left side of the screen.
Proposal
Collaborators: While adding task to the app I discovered I couldn't add collaborators to the app which is very necessary in all task management software to be able to add collaborators as most task might be carried out by a team.
Mockups / Examples

Benefits
By adding the collaborator feature, it will enable users to collaborate easily and also keep track of tasks progress from each collaborator, and will also make the app engaging. If this feature is added a user will prefer to use the app instead of having to download another app when there is need to work with colleagues.
Posted on Utopian.io - Rewarding Open Source Contributors