Quiz Geo - World Countries is an educational application designed to help users learn about countries worldwide, including their capitals, cities, flags, and administrative areas. The app offers various modules such as World, Germany, Czech Republic, France, Italy, Slovakia, and the USA. Users can choose between different quiz modes with two, four, or six choices, or type in their answers. Progressing through correct answers leads to more challenging questions.

Moreover, the app allows users to create and share maps of countries or administrative areas they have visited. While most features are accessible by watching short ad videos, users can opt for the Premium version for an ad-free experience. Subscription prices vary by region, charged through iTunes accounts with automatic renewals unless canceled at least 24 hours before the current period ends.