If you're looking for an app that helps you learn Vietnamese and English, the Vietnamese English Dictionary & Translator app by Bravolol is a great option. This app is available for Android and is completely free to download, with no internet connection required.

One of the most impressive features of this app is its detailed word definitions and example sentences. You can search for Vietnamese and English words and get definitions, examples, pronunciation, and more. Plus, the app offers related search suggestions to help you find the word you're looking for quickly.

Another great feature is the advanced sentences analyzer, which helps you understand the structure of sentences and how words are used in context. You can also save your favorite words and access your search history for easy reference.

The app also includes flashcards for self-learning support, which is a great way to reinforce your vocabulary. Additionally, you can customize the font size for better readability and use Vietnamese, English, and wildcard character search support. Finally, the app offers Vietnamese, British English, and American English pronunciation with phonetics.

Overall, the Vietnamese English Dictionary & Translator app is a great choice for anyone looking to learn Vietnamese and English. Its comprehensive features and user-friendly interface make it an excellent tool for language learners.