With this free U.S. Citizenship Practice Test app, you can easily prepare for the U.S. citizenship final oral interview. In order to become a US citizen, you will need to answer at least six out of ten questions correctly. The app will test your knowledge in the following topics to ensure your overall readiness: American Government -Principles of American Democracy -System of Government -Rights and Responsibilities (being a U.S. Citizen) American History -Colonial Period and Independence