Is there a system that generalizes the translation of mobile applications?

Question

Android

Hello.
There is a program, it is on several platforms, and should be in different languages.
And here's the actual question: is there a way to HOLD Android String Resources and iOS strings in the SAME format (for example, PO), which: 1.
can be given to the translator (key : value table)
format fled in the required format across platforms
Attention: you can ignore "plurals", "string-array", and other complex structures.
Solutions like "translate everything to JSON don't suggest" as this is a workaround. We solve only translation of texts under "native" formats for platforms.

Answer 1

So far we have found https://localise.biz/ as a solution, but it is a foreign service.