Color Flags is a mobile application designed as an educational coloring game focused on the flags of the world. Its primary function is to allow users to paint 137 country flags region by region, selecting the correct colors from a labeled palette. The app is available for free on iPhone, iPad, and Android devices. Each flag is presented as a puzzle where a highlighted area is filled by tapping a color from the palette, a process intended to be simple enough for young children while remaining engaging for adults. The application includes several features that support both learning and accessibility. Upon completing a flag, users unlock a fun fact about that country, covering history, symbols, or geography. Flags can be scored with up to three stars based on accuracy, speed, and avoidance of hints, effectively turning the coloring activity into a quiz. A notable accessibility feature is the inclusion of distinct stripe patterns on each active region, allowing users with color vision deficiencies (such as deuteranopia, protanopia, or tritanopia) to distinguish areas without relying solely on color. The palette displays the explicit color name (for example, "Dark blue" or "Green") next to the color circle. Additionally, the app provides end to end audio narration in English, Portuguese, and Spanish, reading aloud colors, country names, buttons, and fun facts, which assists children who cannot yet read. Typical use cases involve learning world flags through a hands on, region by region painting process. Users start by selecting a color and tapping an area to fill it, then progress through all regions of a flag. The workflow encourages pattern recognition and recall, as users attempt to remember the real colors of each flag to earn higher star ratings. The app also includes practical guides for parents, teachers, and flag enthusiasts, covering topics such as how region by region painting works, strategies for earning three stars on all flags, and considerations for colorblind users. The application was developed by a parent who identified a gap in flag games for colorblind children, leading to the inclusion of pattern based differentiation and narrated labels. The app is available for download from the Google Play Store and Apple App Store, with no stated device requirements beyond a compatible mobile operating system.