Gantter is described as 'Community-Powered | Cloud-Based | Project Management & Scheduling
Construct a building. Create a website. Plan a wedding. From the most traditional to the most unique scheduling needs. Gantter and the power of its community helps you do it better' and is a popular app in the Business & Commerce category. There are more than 100 alternatives to Gantter for a variety of platforms, including the Web, Windows, Mac, Linux and iPhone. The best alternative is Asana, which is free. Other great apps like Gantter are Redmine (Free, Open Source), Kanboard (Free, Open Source), GanttProject (Free, Open Source) and Microsoft Project (Paid).