Yes, both Mambo.IO and Classcraft offer a Free Trial.
Mambo.IO is designed for Large Enterprises, Medium Business and Small Business.
Classcraft is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Mambo.IO Starts at $15/User/Month whereas for Classcraft Starts at $120/Year.
Some top alternatives to Mambo.IO includes Mambo, GetBadges, Bravon, nGAGEMENT, Klujo, Gamifier, StriveCloud App Gamification Platform, Motivarnos, Amazon Forecast and BeeLiked.
Some top alternatives to Classcraft includes Kahoot!, Arcade, Battlejungle, nGAGEMENT, Questario, Klujo, Gamifier, Drimify, StriveCloud App Gamification Platform and QuizGame.