Castor vs freeboard: What are the differences?
Castor: Super simple, everyday data dashboard. Create monitoring dashboards and present your data with a gorgeous interface, on any screen, from an iPad to a wall-mounted TV; freeboard: A free open-source alternative to Geckoboard. A damn-sexy, open source real-time dashboard builder for IOT and other web mashups. A free open-source alternative to Geckoboard.
Castor and freeboard can be primarily classified as "Business Dashboards" tools.
freeboard is an open source tool with 5.67K GitHub stars and 1.08K GitHub forks. Here's a link to freeboard's open source repository on GitHub.