Portuguese Vocabulary is an Android application developed by Titan Software Ltd. It is a free app that aims to help users learn Portuguese language from scratch, without requiring an internet connection. The app offers more than 3,000 commonly used Portuguese words and phrases. One of the noteworthy features of this app is its offline capability, which means that users can learn Portuguese anywhere, anytime, without needing the internet.

The app also provides translations of Portuguese words to English, Italian, German, and Spanish. Users can listen to the pronunciation of words, which are recorded by native speakers. Additionally, users can test and review their vocabulary and record their voice to compare with the native voice. Another feature of this app is the daily notification of a new word to learn. Portuguese Vocabulary App is an excellent choice for anyone interested in learning Portuguese, and it's completely free.