Yes, both SolarWinds Patch Manager and Ninite Pro offer a Free Trial.
SolarWinds Patch Manager is designed for Large Enterprises and Medium Business.
Ninite Pro is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for SolarWinds Patch Manager Starts at $1,909/Year whereas for Ninite Pro Starts at $35/Month.
Some top alternatives to SolarWinds Patch Manager includes Flexera Software Vulnerability Management, ManageEngine Vulnerability Manager Plus, Ivanti Patch for SCCM, ManageEngine Patch Connect Plus, Patch My PC, ManageEngine Patch Manager Plus, Qualys Patch Management, JetPatch, DarkSight and Symantec Endpoint Management.
Some top alternatives to Ninite Pro includes ManageEngine Patch Connect Plus, Patch My PC, ManageEngine Patch Manager Plus, PDQ Deploy, Patchdeck, Qualys Patch Management, Easy Software Deployment, Tanium Patch, Panorama9 and SolarWinds N-central.