The top 10 heatmap tools are Hotjar, Microsoft Clarity, Mouseflow, Crazy Egg, Lucky Orange, FullStory, Contentsquare, Smartlook, Plerdy, and UXCam. In comparison, most tools provide click, scroll, and mouse movement tracking, along with session replay and user behavior analytics, but they differ in depth and scale. Hotjar, Mouseflow, and Smartlook are popular for SMBs due to ease of use and good UX insights, while Microsoft Clarity is free and simple for startups. FullStory and Contentsquare are enterprise-grade with advanced AI analytics, real-time insights, and strong integrations with marketing, CRM, and analytics platforms. Overall, startup tools are simple and low-cost, SMB tools balance features and usability, and enterprise tools offer the most powerful and scalable UX optimization capabilities.