OpenXava - OpenXava is a Web Java Framework for Rapid Development of Enterprise Applications.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Microsoft PowerApps - Microsoft PowerApps provides tools to create, customize, share and run apps.
Wrike - Wrike is a flexible, scalable, and easy-to-use collaborative work management software that helps high-performance teams organize and accomplish their work. Try it now.
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
Basecamp - A simple and elegant project management system.