Open Sans IPA is a sans-serif typeface by jonwhipple. It comes in 4 styles from Regular to Bold, with italics.
Character sets: Latin, Latin Extended, Cyrillic, Ukrainian, Greek and 2 more.
It has 26 OpenType features and 3380 glyphs.
License: SIL Open Font License 1.1. Free for personal and commercial use: print, logos, websites, apps and documents. You can embed it, change it and share it; you cannot sell the font file on its own.