Required software development,Website Development freelancer for Language not changing properly for mobile site using job

My language changer is not working properly on mobile version of site. I am using the WPML plugin where I can choose if I want to use a directory or parameter as argument to change the language of the site. Right now I am using directory method however a third party application does not apply the directory method and instead passes a parameter to change the language. That's great for localisation of the third party app however my site language does not change because.

The objective: to make sure that the site content shows in the correct language as selected by user in mobile version app.

Let's discuss together what would be the best method and proceed from there.

Skills & Expertise Required

software development Website Development