Vietnamese Translator Offline is an iPhone application developed by Xung Le. This app is a full version offline English to Vietnamese and Vietnamese to English translator and dictionary. It includes more than 200K words, sentences, and expressions, making it a comprehensive tool for learning Vietnamese. One of its key features is auto language detection, which makes it easy to use and fast.

The app also has a pronunciation feature with a human voice, which is useful for those who want to learn the correct pronunciation of Vietnamese words. Users can find sentences, phrases, and related words with ease and even correct mistyped words. The app has a pop-up window that shows the meaning of a word when tapped. Moreover, users can review words and expressions with the History and Favorites features.

For advanced features, users can upgrade to Premium to enjoy an ad-free experience, unlimited translation, and no limit on input text length. There are two subscription options to choose from: a yearly subscription and a monthly subscription. Payment will be charged to the iTunes account at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Users can manage their subscriptions by going to their Account Settings after purchase.