Very good app with one exception – Maps of our World Review

I have been trying to learn all the countries in the world, and so far the app has been very helpful, and enjoyable to use. I noticed that they changed the capital of a country in Africa that had recently changed the city. Which I commend. However, while trying to cross off the United States challenges, I really ran into a problem with the capital cities not being marked with a star or other signifier. There is never a chance to in the training to learn the locations of the capitals in reference to the largest cities, so you see them for the first time in the challenger. Many are quite close to each other and this makes it really really hard to pass. Other than this, great app, would recommend, but if they developers would consider the markings for the capital cities that would be a huge improvement.
Review by Holding my breath on Maps of our World.