Prepare for the U.S. citizenship exam with official 2008 version questions. View all questions, study by keyword groups, review marked questions, and listen to questions and answers. Take practice tests with 10 random questions and challenge mode.
Read ebooks from the YBOOK Library collection. Access books through a YBOOK-issued card or linked library/school membership. Borrow and manage reading progress. Sync reading history across devices. Export notes and highlights.
The app offers offline English to Vietnamese and Vietnamese to English translation. It includes pronunciation for American and British English, with features for text translation, voice search, and vocabulary practice.
