Misspellings!!!
First of all, the app does not keep your chosen setting (i.e. themes).Second, it does not allow you to flip the flashcard (quizzing through definitions rather than terms). Third, the app has so much misspelling on it (respirtations? Diarrhoea? Really? Basic spellings are incorrect for a medical-related app loses its credibility as a source of learning). Finally, the app is so disorganized that you can’t even go to a topic by systems. This application is amateur & poorly constructed for it to be a paid app. Not worth $4.