Yes, both Uptime and Nodown offer a Free Trial.
Uptime is designed for Large Enterprises, Medium Business and Small Business.
Nodown is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Uptime begins at $15/Month when Billed Yearly, while pricing details for Nodown are unavailable.
Some top alternatives to Uptime includes Uptime Robot, Super Monitoring, Dotcom Monitor, DevMonitor.io, UpTime.onl, Odown, Downtime Monkey, SiteUptime, updown.io and SolarWinds Pingdom.
Some top alternatives to Nodown includes Uptime Robot, Better Uptime, DevMonitor.io, UpTime.onl, OffAlerts, SiteUptime, Uptrends, pingnow.io, Domain Monitor and MonSpark.