What are some alternatives?
Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.
TextNow - TextNow is a mobile virtual network operator (MVNO) that provides a free phone service to users by using other cellular networks coverage.
Redmine - Flexible project management web application
Sheety - Turn any Google sheet into an API instantly, for free. Power websites, apps, or whatever you like, all from a spreadsheet. Changes to your spreadsheet update your API in realtime. Neat
Trac - Trac is a project management and bug/issue tracking system. Provides an interface to Subversion and an integrated wiki.
ooVoo - Free high quality video chat and video conferencing from ooVoo.