Agile UI is a stand-alone framework that implements all the necessary components to build fully-featured and interractive user interface for your PHP application. Developed by Agile Technologies
License: Open Source
Agile Toolkit is focused on rapid application development with a strong templating engine, while PHP Fat-Free Framework emphasizes simplicity and modularity, making it suitable for developers looking for a lightweight solution. Both frameworks have their strengths, but Agile Toolkit offers more built-in features for quick development, while PHP Fat-Free is better for those who prefer a minimalistic approach.