Yes, both aliveDomain and CheckDuck offer a Free Trial.
aliveDomain is designed for Large Enterprises, Medium Business and Small Business.
CheckDuck is designed for Large Enterprises, Medium Business and Small Business.
Pricing for aliveDomain Starts at $3.99/Month whereas for CheckDuck Starts at $9.99/Month.
Some top alternatives to aliveDomain includes UpTime.onl, Nodeify, R2DTools, Nodown, Domain Monitor, Qualified, yesterday's Domains, Workvivo, DomainWatch, CheckDuck, IFTTT and Domain Scout.
Some top alternatives to CheckDuck includes Netpeak Spider, Screpy, Domain Monitor, Qualified, yesterday's Domains, Workvivo, aliveDomain, DomainWatch, Xpired, IFTTT and Domain Scout.