The US Citizenship Test app by Mantra Infotek is a free education and reference tool available for Android devices. This app provides a comprehensive guide for naturalization, including standard questions and answers with audio, detailed notes, and wiki information. It is available in multiple languages, such as English, Arabic, Chinese, Gujarati, Hindi, Japanese, Korean, Spanish, Tagalog, and Vietnamese.

The app offers a continuous audio play option for Q&A, allowing users to listen to the questions and answers without interruption. Users can mark any Q&A for review and practice self-tests with audio. The app also includes vocabulary tests, standard vocabulary for the reading and writing tests with audio, and a naturalization eligibility worksheet.

US Citizenship Test provides audio commands for the interview, keeping track of appointments, and links to important websites and informational videos. Note that audio is available in native languages only if the phone has text-to-speech (TTS) support for that language. Overall, US Citizenship Test is an excellent tool for anyone preparing for the US naturalization test.