The Vietnamese bible version is Vietnamese Old Version(VOV). Holy Bible in Vietnamese and English. You can learn the bible in bilingual language. And the app has Vietnamese and English mp3 audio for holy bible. And you can search keywords in the app. And the app has Child bible with mp3 audio. And the app has Character checkup with mp3 audio. And the audio can play in background. And the app has a map display all the churches near you. And you can download audio files to iPhone, so when you have no network , you can still listen audio bibles.