Hey, I'm writing in case you still need help with the English translation not showing up on Android. In screens.rpy, you need to un-indent the language selection radio box by 1, as it is currently in the pc or web variant section, that is used for the full screen/windowed buttons. In the pc release, this is in the screen preferences() section, around line 700.
By unindent, I mean this:
vbox:
style_prefix "radio"
label _("Язык")
textbutton _("Русский") action Language(None)
textbutton _("Английский") action Language("english")
becomes
vbox:
style_prefix "radio"
label _("Язык")
textbutton _("Русский") action Language(None)
textbutton _("Английский") action Language("english")