Yes, both iMindQ and MindMeister offer a Free Trial.
iMindQ is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
MindMeister is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for iMindQ Starts at $39/Year whereas for MindMeister Starts at $4.99/Month.
Some top alternatives to iMindQ includes GitMind, Mindomo, MindManager, MindMeister, MindGenius, MindMup, NovaMind, WiseMapping, MindMaster and Rumin.
Some top alternatives to MindMeister includes Mindomo, Zen Mind Map, MindManager, MindGenius, MindMup, NovaMind, SimpleMind, WiseMapping, MindMaster and iMindQ.