I’m an American, my child is American. Therefore, we speak American English. Having said that, it is really difficult to understand a lot of the words in this app because the speaker has a BRITISH accent! Also, some of the words have the British spelling. For example...favorite(American) vs favourite (Britain). Here are some ways to improve the app...give the option to change the accent and country of origin spelling, add more words (child completed all the words in less than a week), and create a better way of tracking progress.