Test para la oposición de fontanero is a free Android application designed for those who are preparing for the plumbing exam in Spain. The app contains multiple tests that can be taken in three different modes. The exam mode is designed to simulate the official exam, while the test mode by themes is useful for studying and learning. The test with friends mode allows users to take the same test at the same time with their friends.

The app also offers various customization options, including the ability to change the screen type, background, and font size and style. Users can also choose the number of questions and time for each test and can opt to receive sound notifications for correct and incorrect answers. The app also features an intuitive interface with easy-to-understand images to help users navigate through its various features.

Overall, Test para la oposición de fontanero is an excellent educational tool that makes exam preparation fun and interactive.