3500 Từ vựng Tiếng Anh is an Android application developed by IT Viet. It is a free education and reference app that helps users learn English vocabulary. The app includes a vocabulary list of more than 3500 commonly used words, organized alphabetically from A to Z. Users can add words to their favorite list and set reminders to learn those words.

The app has a user-friendly and intuitive interface with vivid graphics. It also includes a game called "Đuổi nghĩa- Bắt từ," which is a puzzle game that helps users learn new words while having fun. The game requires users to translate Vietnamese words into English, making it an effective and engaging way to learn new vocabulary.

The app also features smooth transitions between screens, creating a visually pleasing experience for users. Overall, 3500 Từ vựng Tiếng Anh is a useful app for anyone looking to improve their English vocabulary. It is easy to use and provides a comprehensive list of words that will help users build their vocabulary.