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OnePager Pro for Microsoft Project - OnePager Pro builds Gantt charts, timelines and multi-project reports using data from Microsoft Project, Project Online, and Project Server.
Momentum - Agile goal and performance management
Ganttify - Ganttify is a gantt chart software for visualization of activities and bottlenecks in a project.
Hello Epics for Trello - Simplify your Trello board with parent/child relationships