Kohana vs Trailblazer: What are the differences?

Kohana: An elegant HMVC PHP5 framework. Kohana is an elegant, open source, and object oriented HMVC framework built using PHP5, by a team of volunteers. It aims to be swift, secure, and small; Trailblazer: A new architecture for Rails. Trailblazer is a thin layer on top of Rails. It gently enforces encapsulation, an intuitive code structure and gives you an object-oriented architecture. In a nutshell: Trailblazer makes you write logicless models that purely act as data objects, don't contain callbacks, nested attributes, validations or domain logic. It removes bulky controllers and strong_parameters by supplying additional layers to hold that code and completely replaces helpers.

Kohana and Trailblazer belong to "Frameworks (Full Stack)" category of the tech stack.

"Open source" is the primary reason why developers consider Kohana over the competitors, whereas "Trailblazer allows creating sane, large apps in Rails" was stated as the key factor in picking Trailblazer.

Kohana and Trailblazer are both open source tools. Trailblazer with 2.91K GitHub stars and 129 forks on GitHub appears to be more popular than Kohana with 1.61K GitHub stars and 464 GitHub forks.