RAL colors. Home wall painting app recently received 3 positive reviews on iPhone, iPad, and Android devices, and 2 negative reviews. Users in the United States have given RAL colors. Home wall painting app an average rating of 3.37 out of 5 stars, based on a total of 140 ratings since its release on Aug 19 by SIARHEI ZINKEVICH. Can you share your positive or negative thoughts about RAL colors. Home wall painting?