Kirby CMS vs ProcessWire: What are the differences?

### Introduction
When comparing Kirby CMS and ProcessWire, it's important to understand the key differences between the two content management systems.

1. **Licensing**: Kirby CMS is a commercial product with a paid license fee, while ProcessWire is an open-source platform that is free to use with no licensing fees.
   
2. **File-based vs. Database-driven**: Kirby CMS stores content and data in files, making it easier to version control and manage, while ProcessWire uses a MySQL database to store content and data.

3. **Modularity**: Kirby CMS follows a modular approach where features can be added through plugins, whereas ProcessWire offers a flexible API that allows for easy customization and development without relying heavily on plugins.

4. **Template System**: Kirby CMS uses PHP-based templates for creating the front-end, offering more customization options, while ProcessWire uses a template system that separates content from design.

5. **Learning Curve**: ProcessWire is considered to have a steeper learning curve for beginners due to its technical nature and usage of PHP, while Kirby CMS is known for its user-friendly interface and simpler approach.

In Summary, the key differences between Kirby CMS and ProcessWire lie in their licensing model, storage mechanism, modularity, template system, and learning curve.