Alpin - Alpin is the single dashboard to monitor and manage SaaS ecosystem.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
G2 Track - Manage your entire technology stack in one dashboard
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.
Google Authenticator - Google Authenticator is a multifactor app for mobile devices.
Prometheus - An open-source systems monitoring and alerting toolkit.