Observium is described as 'Autodiscovering PHP/MySQL/SNMP based network monitoring which includes support for a wide range of network hardware and operating systems including Cisco, Linux, FreeBSD, Juniper, Brocade, Foundry, HP and many more' and is a Network Monitor in the development category. There are more than 50 alternatives to Observium for a variety of platforms, including Linux, Windows, Web-based, Self-Hosted and Mac apps. The best Observium alternative is Zabbix, which is both free and Open Source. Other great apps like Observium are Nagios, Spiceworks, Datadog and HyperDX.