Yes, both Robot.alp and OffAlerts offer a Free Trial.
Robot.alp is designed for Large Enterprises, Medium Business and Small Business.
OffAlerts is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Robot.alp Starts at $7.50/Month when Billed Yearly whereas for OffAlerts Starts at $10/Month when Billed Yearly.
Some top alternatives to Robot.alp includes Uptime, Uptime Robot, Super Monitoring, DevMonitor.io, UpTime.onl, Monitor Buddy, Uptrends, 66uptime, WebForce Uptime and Pingt.io.
Some top alternatives to OffAlerts includes Uptime, Uptime Robot, Easyping, Better Uptime, DevMonitor.io, UpTime.onl, Odown, SiteUptime and Uptrends.