OBL - Olimpíada Brasileira de Linguística is an Android application developed by Fractal Tecnologia that offers a fun and interactive way for high school students to learn about languages, linguistics, culture, and cognition. The OBL has been taking place since 2011 and has been engaging students from different parts of Brazil.

The puzzles in OBL involve language and codes, which bring together logical and cognitive structures with the diversity of cultures and languages in the human world. What's great about this app is that no prior knowledge of linguistics is needed to enjoy it, making it accessible to everyone!