The House of Blackjack 21 app recently received 1 positive reviews on iPhone, iPad, and Android devices. Users in the United States have given House of Blackjack 21 app an average rating of 4.49 out of 5 stars, based on a total of 15.1K ratings since its release on Jun 24 by MASSIVE GAMING PTY. Can you share your positive or negative thoughts about House of Blackjack 21?