This is one of the best and most complex geography apps, designed for all those who want to have all the information related to the countries of the world in a single place. It contains detailed information about all the countries (including the population, geography, climate, capital, currency etc), maps of the continents, tests with thousands of questions, classifications and a bunch of other interesting info related to the main international organizations (such as NATO or IMF), unrecognized independent territories and many more!

The app is 100% offline, is free and it works like a charm! I you like this app, with can purchase the pro version, which unlocks all the features, doesn’t require any kind of permissions and doesn’t contain any ads.