RepairShopr - RepairShopr provides robust ticketing and invoicing system, CRM, POS, and marketing platform for repair shops and IT support businesses.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
RepairQ - More than a POS, RepairQ is a full business management, CRM, and ticket tracking software built just for retail, repair shops.
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.
Syncro - Syncro is a fully-armed PSA + RMM + Remote platform designed specifically for MSPs.
Prometheus - An open-source systems monitoring and alerting toolkit.