Base on the slogan “Learn by Playing, Play for Learning”, The “Flag World” App will help you to learn and play with over 200 flags of countries on the world. The App has the game, which design very intelligent, step by step will help you to identify the flags. We will start from level 1 with one country name and one flag and will increate to level 2, 3, 4, ... , 8. The App has stored the result of game. It let you know which flags are familiar with you and vice versa. The app help you focus to learn the flags that you often choice wrong.