PingStack offers Free Trial, but DevMonitor.io does not.
PingStack is designed for Medium Business and Small Business.
DevMonitor.io is designed for Large Enterprises, Medium Business and Small Business.
Pricing for PingStack Starts at $9/Month whereas for DevMonitor.io Starts at $5/Month.
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 DevMonitor.io includes Uptime, CHEQ.ONLINE, Uptime Robot, Super Monitoring, UpTime.onl, OffAlerts, Odown, SiteUptime, Uptrends and WebForce Uptime.