Mucuho: Exames da 12ª classe is an Android app that helps students prepare for their 12th-grade exams. It offers a simple and direct approach through small tests with questions related to the exam you want to prepare for. The app covers various subjects, including Portuguese, English, French, History, Geography, Philosophy, Biology, Mathematics, Physics, and Chemistry. Each subject contains 320 questions divided into 16 tests.

It is worth mentioning that all questions used in this app are available on the Ministry of Education's website. However, it is important to note that the app is not affiliated with the Ministry of Education in any way, and the Ministry is not responsible for any errors the app may contain. Overall, Mucuho: Exames da 12ª classe is a useful tool for students looking to prepare for their 12th-grade exams.