Great app! I was able to learn all 245 countries, including tiny countries and dependent nations, in roughly 6 hours.
As for improvements, it would be nice if there is an option to separate the tiny countries from dependent nations, and to learn more about islands. For example, Ascension (UK) is part of 3 islands Saint Helena, Ascension, and Tristan da Cunha, but only Saint Helena is mentioned. Or Kitts and Nevis.. which one is Kitts and which one is Nevis? Same for Wallis and Futuna, which one is which? They’re all just bulked together as one.
It would also be nice if the cities and capitals’ option receives a little more improvement. For example, even if you know which country’s capital it is, there’s no way to get the answer right unless you click the right spot. If that was the case, for the learning process, it would be helpful to have an indication like a circle or the likes at the area where the capital is located. And it doesn’t have the quiz option like the one you get for the countries. Or an option to show the capitals beforehand, like the “show nearby countries” option.
Great work! Thanks again for an awesome app!