Yes, both PingStack and Hyperping offer a Free Trial.
PingStack is designed for Medium Business and Small Business.
Hyperping is designed for Medium Business and Small Business.
Pricing for PingStack Starts at $9/Month whereas for Hyperping Starts at $24.16/Month when Billed Yearly.
Some top alternatives to PingStack includes Uptime, Uptime Robot, Hyperping, DevMonitor.io, UpTime.onl, CallView 360, SiteUptime, pingnow.io, WatchSumo and Loadping.
Some top alternatives to Hyperping includes StatusCake, StatusEntry, DevMonitor.io, UpTime.onl, OffAlerts, 66uptime, Pingt.io, 4Uptime and WebGazer.