Yes, both Up Ninja and PageCheck offer a Free Trial.
Up Ninja is designed for Large Enterprises, Medium Business and Small Business.
PageCheck is designed for Medium Business and Small Business.
Pricing for Up Ninja Starts at $4.99/Month whereas for PageCheck Starts at $19/Month.
Some top alternatives to Up Ninja includes Uptime, Apex Ping, Uptime Robot, DevMonitor.io, UpTime.onl, Uptrends, Epic Ping, Loadping, Pingt.io and Statsignal.
Some top alternatives to PageCheck includes Uptime, Super Monitoring, GTmetrix, Uptrends, 66uptime, WebForce Uptime, Pingt.io, 4Uptime and Performance90.