Yes, both Uptrends and WatchSumo offer a Free Trial.
Uptrends is designed for Large Enterprises, Medium Business and Small Business.
WatchSumo is designed for Medium Business and Small Business.
Pricing for Uptrends Starts at $15.47/Month when Billed Yearly whereas for WatchSumo Starts at $7/Month.
Some top alternatives to Uptrends includes Freshping, Uptime, DevMonitor.io, Monitis, SolarWinds Pingdom, Visualping, pingnow.io, Epic Ping, PingPing and Pingt.io.
Some top alternatives to WatchSumo includes Uptime, Super Monitoring, UpTime.onl, Netumo, Uptrends, pingnow.io, WebForce Uptime, Pingt.io and Statsignal.