Received recently from Flynax:

Q: Are free/premium plugins translated into Russian language as well?
A: Unfortunately plugins don't have translation yet. You may translate the front-end plugin phrases
using admin panel languages manager. Usually plugin has about 5-10 front-end phrases, so it
won't take you too much time to do it self.

First of all, my native language is Russian.

I could translate all these plugins phrases into RU and provide translation openly on this forum or provide it to flynax staff. It would be completely free of charges. My concern is just files I could install instead of playing with admin panel languages.

If any interest, just let me know