Typotheque webfonts support all languages supported by their print versions. That’s over 200 languages, including those using Cyrillic, Greek and Arabic scripts.
Typotheque fonts support 85 languages, however not every version of every font supports every language. For example if you use both English and Czech in a document, you need to use a version of the font which supports those two languages.
Although the notion of serif/sans serif doesnʼt exist in Arabic typography, we created two different packages for Fedra Sans and Serif. Obviously only the Latin characters are serifed or not; the Arabic glyphs were then designed to match the typographic ʻcolourʼ of the text, so the Sans is slightly heavier than the Serif because...
We offer two different kinds of Arabic fonts: Fedra AR (Arabic), which supports only the Arabic and Mac Roman sets; and Fedra Multiscript, which offers the same Arabic support plus full Latin (Western, Turkish, Central, Eastern European), Greek and Cyrillic.