Yes, both SolarWinds Engineer's Toolset and Nagios XI offer a Free Trial.
SolarWinds Engineer's Toolset is designed for Large Enterprises, Medium Business and Small Business.
Nagios XI is designed for Large Enterprises, Medium Business and Small Business.
Pricing details for both SolarWinds Engineer's Toolset and Nagios XI are unavailable at this time. Contact the respective providers for more information.
Some top alternatives to SolarWinds Engineer's Toolset includes Auvik, PRTG Network Monitor, Spiceworks Network Monitor, Nagios Network Analyzer, SolarWinds ipMonitor, Netcrunch, ManageEngine OpUtils, ManageEngine OpManager, SolarWinds Network Performance Monitor, Wireshark, Pulseway and NinjaOne (NinjaRMM).
Some top alternatives to Nagios XI includes Auvik, Zabbix, Ne.Mo. Network Monitoring, PRTG Network Monitor, Spiceworks Network Monitor, Nagios Network Analyzer, SolarWinds ipMonitor, Netcrunch, OP5 Monitor, SolarWinds Network Performance Monitor, Checkmk and NinjaOne (NinjaRMM).