Kami is a more user-friendly tool focused on real-time collaboration and ease of use, while Okular is a powerful open-source application that offers extensive features for document viewing and annotation, making it more suitable for advanced users.
Okular
Pros:
Open-source and free to use
Supports various file formats including PDF and DjVu
Powerful annotation tools
Customizable with plugins
Cross-platform compatibility
Cons:
Less intuitive interface for new users
Limited cloud storage integration compared to others
Fewer collaboration features than some competitors
Kami
Pros:
User-friendly interface
Supports a wide range of document formats
Real-time collaboration features
Annotation tools for PDFs and images
Integration with Google Drive and other cloud services