Translation of "Доступне з будь-якого вашого пристрою" that is above - not clear,
as there should be : " "Доступне something з будь-якого вашого пристрою" for better understanding what text is about. Also, "вашого"(your) is an extra word that doesn't exist in the original text. So, I added my variant, that contains 'chat' in the translation.

I don't see a reason not to include extra clarification about chat ownership, as it might be dropped from original text just due to text size limit.

We are not trying to do word-perfect translation, we want translation that goes with the flow, feels native to most of people and doesn't cause any raised eyebrows.

Anyway big thanks for your suggestions, the screen… doesn't look polished enough, and you clearly made that obvious.