411 vs NetData: What are the differences?
What is 411? An Alert Management Web Application, by Etsy. Configure Searches to periodically run against a variety of data sources. You can define a custom pipeline of Filters to manipulate any generated Alerts and forward them to multiple Targets. Review and manage Alerts through the web interface. You can apply Renderers to alerts to enrich them with additional metadata.
What is NetData? Real-time performance monitoring, done right!. Netdata is distributed, real-time, performance and health monitoring for systems and applications. It is a highly optimized monitoring agent you install on all your systems and containers.
411 and NetData can be categorized as "Monitoring" tools.
411 and NetData are both open source tools. It seems that NetData with 39.4K GitHub stars and 3.48K forks on GitHub has more adoption than 411 with 862 GitHub stars and 97 GitHub forks.