Vietnamese Dictionary Dict Box (Xung Le)

Vietnamese Dictionary Dict Box is a mobile Vietnamese–English and English–Vietnamese dictionary app for quick word lookups when you are studying, reading, or traveling. It is a good fit if you want a reference tool you can keep on your phone, including when you are offline.

You can look up words with an offline dictionary, listen to text-to-speech pronunciation, and translate longer text when you need the gist. One of its most practical features is Live Translation, which lets you translate words from inside a browser or other apps without constantly switching contexts.

It also adds extras that can help with vocabulary building, like word reminders, picture support, and additional word lists and dictionaries you can install. The main limitation is that it is not a structured Vietnamese course, so you will still need lessons or a textbook for grammar and guided practice. The free version is ad-supported, and some features like backup and sync are part of the Premium upgrade via in-app purchase on iOS and Android.