ganttproject

Install command: 
brew install --cask ganttproject

Name: GanttProject

Gantt chart and project management application

https://www.ganttproject.biz/

/api/cask/ganttproject.json (JSON API)

Cask code on GitHub

Current version: 3.2.3200,3.2.3230

Analytics:

Installs (30 days)
ganttproject 44
Installs (90 days)
ganttproject 116
Installs (365 days)
ganttproject 496
Fork me on GitHub