This app is created for true professionals! Thousands of architects, designers, engineers and just creative people from all over the world use our product. All users’ comments and wishes helped to establish a reliable, powerful and useful app. We have developed a physically correct 3D color display and perfected color reproduction. It’s an easy-to-master app, and its reliability and speed of operation will pleasantly surprise you. We can state with confidence that it is the best RAL and Ncs electronic catalog in the world! RAL and Ncs are international color matching systems actual for almost every field. RAL and Ncs color standards became dominant in architecture, design, industry and commerce. Major world companies use RAL and Ncs colors in their production processes. - original RAL collections: CLASSIC, DESIGN, EFFECT, PLASTICS - original Ncs collection - physically correct 3D color display - perfect color reproduction - colors can be added to favorites - convenient converter to RGB, CMYK, HEX - app doesn’t need the Internet - no ads We recommend you to use the app in iPhone 5S or in the later models!