Yes, both Uptrends and PingPing offer a Free Trial.
Uptrends is designed for Large Enterprises, Medium Business and Small Business.
PingPing is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Uptrends Starts at $15.47/Month when Billed Yearly whereas for PingPing Starts at $4/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 PingPing includes Uptime, CHEQ.ONLINE, Uptime Robot, Super Monitoring, DevMonitor.io, UpTime.onl, Odown, SiteUptime, updown.io and pingnow.io.