Hi Samuel, thanks for your reply.
Yes, I know that WP is for creating websites, but I created a website that is like an application, it serves to call the waiter and order either by text or by voice… Example: A restaurant has 100 tables, there is a QR code on each table, the guest scans QR code and he gets a page with his table number.
The site is multilingual, the guest chooses the language he wants, all the text on the screen is in the chosen language.
The guest says the order by voice, it is converted into text and the guest sends the order.
The guest has chosen, for example, the German language, he sees the text in German, but if Android is set to English, the mobile phone does not understand speech in German and cannot convert speech to text.
So, it doesn’t matter what we call what we did in WP, I’m only interested in changing the language from the WP site in Andrid Settings.