Zend Platform PS – Ideal for small to mid-sized organizations

　　Zend Platform PS provides the performance and management functions needed for every PHP deployment. The performance features are designed to maximize user responsiveness for your PHP applications allowing applications to run significantly faster. The performance improvement is typically 2x-3x and can be as much as 150x depending on the type of application. The management features are designed to simplify the process of configuring your servers and monitoring the status of your PHP application.

Zend Platform IS - Ideal for any organization with application and infrastructure integration needs

　　Zend Platform IS provides the integration services needed by modern PHP applications and production environments. By providing integration to Java, reporting capabilities and SNMP integration, applications work in harmony with your existing infrastructure.

Zend Platform ES – Ideal for large organizations needing the utmost in scalability and reliability

　　Platform ES is the ultimate PHP solution incorporating all the features of Platform PS and Platform IS while adding enterprise-grade functionality for increased reliability and scalability in multi-server environments. By providing session clustering, a high availability fail-over solution, your application provides a more robust and reliable user experience. The user experience and responsiveness is further enhanced with off-line processing and a high performance file download mechanism.