價格：免費
檔案大小：20 MB
版本需求：需要 iOS 9.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Ever wanted to test your knowledge of the national flags? Now you have this opportunity!
Find out how many countries can you guess looking at their flags. We have prepared more than 180 questions for you. Each question suggests letters needed for the correct answer, however not all of them are necessarily used.
支援平台：iPhone