Bíblia em áudio grátis is a free digital Bible that offers a complete version of the João Ferreira de Almeida Atualizada (JFAA) in audio format. The app is available for Android devices and contains 66 books, separating the Old Testament into 39 books and the New Testament into 27 books. It is an updated version of the Almeida Bible, which is a sequence of translations and revisions started by João Ferreira de Almeida in the 17th century.

The app's features include the ability to easily navigate through books and chapters, mark and save verses, add notes, and create a list of favorites. Users can also share their favorite verses on social media platforms such as Facebook and Twitter. The app has a search function for words in the Bible and a feature that allows users to adjust the font size and activate a night mode for more comfortable reading. Another great feature is that the app does not require an internet connection to use it.