Unity does not support the right to left languages. RTL plugin converts right to left text in a format compatible with Unity render engine.
-Fast and quick in edit or run-time modes
-Supports Unity Visual UI system and OnGUI methods
-Right to left word wrapping
-Supports Farsi, Arabic, and English number formats
-Easy to use in code and editor
-Supports almost all platforms including mobile and game consoles
-Supports most of the RTL fonts
-Supports combinations of texts, numbers, punctuation, math formulas