Laravel is currently the only integration in the PHP-world. But most of the code could certainly be reused for a Symfony application, or any other PHP project.

We think that every framework must have a tailored solution to handle translations best, so we move forward in small steps to be sure our solution fits the pain (of maintaining translations up-to-date as the app evolves).

Ok good to know, do you have any roadmap to know the next integration (nodejs or Django ?) ?

Right now, we think about the possibility to integrate with Wordpress or Symfony.

If you use React, one of our users also created a plugin for React-Intl: https://github.com/deecewan/translation-io