Fig. 2

Screenshots of the developed mobile headache journal, Chronicals. On the left screen, the user can select the appropriate location of the headache (translation: “Location. Indicate on which places you feel pain. Hint: you can turn the model.”). The middle screen depicts the home screen and contains a button to add new headache information, add new medicine information, get an overview of registered information, display advice from physicians and configure the settings of the application. On the right screen, the user can select the relevant symptoms for a headache (translation list entries from top to bottom: “vomiting, sensitive to exertion, nausea, sensitive to light, sensitive to sound, lack of appetite, visual aura, sensible aura, motoric aura, speech problems”)