Twig vs Apache Sling: What are the differences?

Developers describe Twig as "A flexible, fast, and secure template engine". It is a modern template engine for PHP. It is flexible, fast, and secure. Its syntax originates from Jinja and Django templates. On the other hand, Apache Sling is detailed as "Innovative web framework that is intended to bring back the fun to web development". It is a framework for RESTful web-applications based on an extensible content tree. It maps HTTP request URLs to content resources based on the request's path, extension and selectors. Using convention over configuration, requests are processed by scripts and servlets, dynamically selected based on the current resource. This fosters meaningful URLs and resource driven request processing, while the modular nature of Sling allows for specialized server instances that include only what is needed.

Twig and Apache Sling can be categorized as "Frameworks (Full Stack)" tools.