The application uses only Russian localization. All strings are in values/strings.xml . Including such a plural:
<plurals name="days_left"> <item quantity="one">Остался %d день</item> <item quantity="few">Осталось %d дня</item> <item quantity="many">Осталось %d дней</item> </plurals> If you install on the phone, for example, English, then the plural rules for the Russian language are not applied and are used that are inherent in the established language. Specifically, in this case, few do not work, and for 2, 3, 4, an expression from many substituted: 2 days left
Is it possible to forcibly use the required locale for the plural rules? As, for example, this is done in String.format(Locale l, String format, Object... args)