Yes, both BoltAPI and Uptrends offer a Free Trial.
BoltAPI is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Uptrends is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Uptrends begins at $15.47/Month when Billed Yearly, while pricing details for BoltAPI are unavailable.
Some top alternatives to BoltAPI includes CHEQ.ONLINE, Super Monitoring, DevMonitor.io, UpTime.onl, Odown, updown.io, Uptrends, Domain Monitor, PingPing and Pingt.io.
Some top alternatives to Uptrends includes Freshping, Uptime, DevMonitor.io, Monitis, SolarWinds Pingdom, Visualping, pingnow.io, Epic Ping, PingPing and Pingt.io.