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Yes, both HackerRank and Codejudge offer a Free Trial.
HackerRank is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Codejudge is designed for Large Enterprises, Medium Business and Small Business.
The starting price of HackerRank begins at $249/Month when Billed Yearly, while pricing details for Codejudge are unavailable.
Some top alternatives to HackerRank includes DevScreen, LeetCode Interview, Qualified, Workvivo, HackerPen, Codejudge, CoderPad, HackerEarth, Interview Sandbox, KillerCoder.io, IFTTT and Codidate.
Some top alternatives to Codejudge includes Qualified, Workvivo, Vervoe, eSkill, TalScale, CoderPad, DevSkiller, DoSelect, SkillRobo, Traitstack, IFTTT and Personality at Work.