1. Ease of use: Hotjar provides a user-friendly interface that allows users to set up heatmaps, recordings, surveys, and more without technical knowledge. On the other hand, Qualaroo may require some technical expertise to fully utilize its capabilities, making it slightly less user-friendly for beginners.

2. Features: Hotjar offers a comprehensive set of tools such as heatmaps, session recordings, surveys, and more, all integrated into one platform. Meanwhile, Qualaroo primarily focuses on surveying and gathering customer feedback, offering fewer types of tools compared to Hotjar.

3. Pricing model: Hotjar provides a freemium model, allowing users to access some basic features for free with paid plans for additional functionality. In contrast, Qualaroo offers a subscription-based model, which may be more cost-effective for larger businesses but may lack flexibility for smaller companies.

4. Customization options: Hotjar offers extensive customization options for surveys, heatmaps, and other tools, allowing users to tailor them to their unique needs and branding. On the other hand, Qualaroo may offer fewer customization options, limiting the ability to create highly personalized experiences for users.

5. Analytics capabilities: Hotjar provides in-depth analytics and insights based on user behavior data collected through its tools, enabling users to make data-driven decisions. While Qualaroo offers analytics features, they may not be as advanced or detailed compared to what Hotjar provides.

6. Integration with third-party tools: Hotjar has a wide range of integrations with popular third-party tools such as Google Analytics, WordPress, and Shopify, allowing for seamless data sharing and analysis. In contrast, Qualaroo may have fewer integrations available, limiting its compatibility with other tools and platforms.

In Summary, Hotjar and Qualaroo differ in terms of ease of use, features, pricing model, customization options, analytics capabilities, and integration with third-party tools.