Yes, both Codidate and KillerCoder.io offer a Free Trial.
Codidate is designed for Individuals, Freelancers, Medium Business and Small Business.
KillerCoder.io is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Codidate begins at $49/Month, while pricing details for KillerCoder.io are unavailable.
Some top alternatives to Codidate includes LeetCode Interview, CodingView.io, Qualified, Workvivo, ViewCoder, HackerPen, CoderPad, Interview Sandbox, HackerRank, KillerCoder.io and IFTTT.
Some top alternatives to KillerCoder.io includes DevScreen, Qualified, Workvivo, UnbugQA, CoderPad, DevSkiller, Toggl Hire, HackerRank, IFTTT, Online Check Writer and Drag.