CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
AVG PC TuneUp - Peak performance for your PC. Keeps it going for longer. - More Speed Turbo Mode
Prometheus - An open-source systems monitoring and alerting toolkit.