CheckDuck offers Free Trial, but IFTTT does not.
CheckDuck is designed for Large Enterprises, Medium Business and Small Business.
IFTTT is designed for Individuals, Freelancers, Medium Business and Small Business.
Pricing for CheckDuck Starts at $9.99/Month whereas for IFTTT Starts at $3/Month.
Some top alternatives to CheckDuck includes Netpeak Spider, Screpy, Domain Monitor, Qualified, yesterday's Domains, Workvivo, aliveDomain, DomainWatch, Xpired, IFTTT and Domain Scout.
Some top alternatives to IFTTT includes Tasker TimenTask, Zapier, Integrately, Microsoft Flow, Zoho Flow, Qualified, Built.io Flow, Workvivo, Flowall, Applet, OneSaaS and Basaas.