Test y examenes BIR is an Android application designed to help users pass the Biology Internal Resident Exam (BIR) and obtain their specialized healthcare training degree. The app contains previous year's exam questions and offers three different modes to take tests.

The Exam Mode is designed to be similar to the official exam and displays the time remaining and the current question number. You can view your exam results and see all the incorrect answers with their correct response. The Topic Test Mode is ideal for studying and learning, and displays the total questions, current question, and your number of correct answers. You can move forward and backward through the test using the bottom arrows and view the correct answer at any time.

The Friends Test Mode allows you to take the same test as your friends at the same time, with up to six devices synchronized via Bluetooth. The app also offers various customizations, including screen type selection, background change, font selection, and size adjustment, allowing users to personalize their experience.

Overall, Test y examenes BIR is an excellent and comprehensive study tool that makes preparation for the BIR exam both engaging and entertaining.