IOS 13 has a lot of interesting, but little known possibilities, «chips». One of them allows you to set the language in any application, different from system.
Sometimes it may be necessary, if the Russian interface of the program is incorrect, does not fit in the area allotted to it and t.d.
How to change the language in any application, leaving the system language unchanged
Starting with iOS 13, you can change the language settings in this way.
1. Install additional language on iPhone or iPad. To do this, go to Settings → The main → Language and Region → Other languages and select languages, which may be useful for translating custom applications.
If desired, the device itself can be left the main Russian language:
The first of the preferred languages will be used by default in all applications.
2. Return to the main application screen «Settings», scroll down and select the desired application, in which you need to change the language. In section «Preferred Language» choose an option.