1. Scalability: Confluence is a widely used enterprise wiki tool that offers a highly scalable solution for team collaboration and documentation. On the other hand, zeroheight is a design system documentation tool that focuses on providing scalable design system documentation specifically for design teams.

2. Collaboration and Editing: Confluence provides a robust collaboration platform with features like real-time editing, commenting, and version control. It allows multiple users to work simultaneously and edit pages together. In contrast, zeroheight offers a more design-focused collaboration experience with features like design feedback, commenting directly on designs, and approval workflows tailored for design teams.

3. Content Organization: Confluence provides a hierarchical structure for organizing content through spaces, pages, and child pages. It allows users to create a structured knowledge base with different levels of access permissions. On the other hand, zeroheight offers a more visual and flexible content organization approach with a focus on organizing design documentation using sections, pages, and modules.

4. Integration Capabilities: Confluence has a wide range of integration capabilities with third-party tools like Jira, Trello, and Slack, allowing teams to connect and collaborate seamlessly. In contrast, zeroheight offers deeper integration with design tools like Sketch, Figma, and Adobe XD, allowing designers to sync their design files directly to zeroheight and keep their documentation up to date.

5. Design System Management: Confluence can be used to document and share design system components, guidelines, and best practices. However, zeroheight is specifically designed to manage design systems, providing features like component libraries, design tokens, and design system documentation templates, making it easier for design teams to create, maintain, and share their design systems.

6. Customization and Branding: Confluence allows users to customize the look and feel of their spaces and pages by adding logos, colors, and custom themes. On the other hand, zeroheight offers more advanced customization options with the ability to create custom layouts, templates, and stylesheets, allowing design teams to tailor the appearance of their design system documentation to match their brand identity.

In Summary, Confluence is a comprehensive collaboration and documentation tool with a broader scope, while zeroheight is a design system documentation tool specifically designed for design teams, offering advanced design-focused features and customization capabilities.