Yes, both Segment and SolarWinds Pingdom offer a Free Trial.
Segment is designed for Large Enterprises, Medium Business and Small Business.
SolarWinds Pingdom is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Segment Starts at $120/Month whereas for SolarWinds Pingdom Starts at $10/Month when Billed Yearly.
Some top alternatives to Segment includes CustomerLabs CDP, BlueConic, Captain Metrics, Zylotech, Lexer, Acquia Marketing Cloud, BSI CDP, Gravito CDP and euromessage CDP.
Some top alternatives to SolarWinds Pingdom includes Freshping, Uptime, Pingmeter, SolarWinds ipMonitor, Visualping, pingnow.io, Epic Ping, PingPing, Pingt.io and PingSphere.