Designed by Dave Crossland
The Cantarell typeface family was designed as a graduation project for the MA Typeface Design programme in the Department of Typography at the University of Reading (UK.) A contemporary humanist sans serif, it was developed for on-screen reading; in particular, reading web pages on cheap Android devices.
You can download font files directly and install them with Font Book. However, it’ll be much easier to install these fonts with RightFont — the best font manager for Mac.
These fonts are licensed under the Open Font License.
You can use them freely in your products & projects - print or digital, commercial or otherwise.