Zabbix - Track, record, alert and visualize performance and availability of IT resources
Attendink - A minimalist attendance tracking tool
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.
Shiftee - Shiftee streamlines the process of employee scheduling, time clock attendance to payroll by providing a solution to manage and help business
Prometheus - An open-source systems monitoring and alerting toolkit.
Clockify - Simple and free time tracker. Perfect for small and mid-sized businesses as well as freelancers. Unlimited projects and users, unlimited productivity. Get all the premium functionalities, completely free.