Please don’t! Or at least make it possible to change the app language instead of following the system if you do. Plenty of apps have faulty ‘translations’ that just make the app unusable. Especially because app text typically has no context, so you get these weird literal translations.

Enjoy finding a literal english translation that corresponds to something I may want to do in your app!

In the order of 40000 people, so pretty tiny compared to the big search engines.