National flags quiz

This app is perfect for learning all the countries' flags or for testing you knowledge:
- It contains the flags of the 199 countries.
- It is user friendly.
- The proportions of the flags are respected.
- Several game modes are available: world, by contient...
- And a challenge to test your eye for details!

The point of the game is to get as many correct answers as possible, with 3 wrong answers allowed.
Will you succeed to reach the perfect score?