Netdata is described as 'Collects metrics per second and presents them in beautiful low-latency dashboards. It is designed to run on all of your physical and virtual servers, cloud deployments, Kubernetes clusters, and edge/IoT devices, to monitor your systems, containers, and applications' and is a popular Network Monitor in the network & admin category. There are more than 50 alternatives to Netdata for a variety of platforms, including Linux, Self-Hosted, Windows, Mac and SaaS apps. The best Netdata alternative is Grafana, which is both free and Open Source. Other great apps like Netdata are Zabbix, Datadog, Nagios and Paessler PRTG Network Monitor.
Only provides graphing - does not collect metrics.