Based on our record, Observium should be more popular than DeskPRO. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Nor free, but an affordable on-prem or cloud solution is deskpro.com. Source: 12 months ago
Environment-wide stats such as disk utilization and load averages can be done using Observium with very minimal effort required to get started (no additional agent required as it monitors using SNMP, and it automatically detects what to monitor on a system / UPS / PDU / etc). Source: over 2 years ago
If you're looking for a tool that can graph resource utilization for a large number of device types out of the box using SNMP, you might take a look at Observium. Source: over 2 years ago
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
LibreNMS - A fully featured network monitoring system that provides a wealth of features and device support.
HelpScout - Help Scout is a simple, straightforward way to provide excellent support
Icinga - Icinga is a fork of Nagios and is backward compatible.