Flag Quiz of Capitals of the W

Android app to know the maps, flags, capitals of all countries on the planet.

Viewing and memorizing the flag helps to improve color sense and memory.
Learn the names, flags and capitals of all countries around the world with this app.
Anyone can use it easily.
This app is enough to understand maps, flags and capitals of 199 countries around the world.

Characteristic :

-Simple design
-Compete your ranking with friends around the world in 100 seconds
-Maps and flags and capitals of all countries in the world.
-Full screen image of the flag of all countries.
-Check the geographical location of your country via Google Maps.
-Google maps mapped to the location of that country.
-Wikipedia search by country.
-Win coins to earn coins.
-You can study, get coins, and receive nice gifts with coins.