A free program for Android, by AllDict.

This French-Vietnamese Dictionary (Dictionnaire français-vietnamien, Từ điển Việt-Pháp) is free and offline, so you can use it anywhere, anytime. It is a dictionary with an extensive word trainer, which makes it suitable for any level. The dictionary can be used as a source of information for any topic, but also for learning a new language.

The app is very easy to use. It is designed for both desktop and mobile devices. On a desktop device, the user can search for words by typing or searching from the voice input. On a mobile device, the user can search by voice or by using the search function. The results are displayed in a very simple and intuitive way. The user can add all the words to the personal dictionary and learn those words with the word trainer.