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