This application is strictly for use by participants in the inTin project of Leiden University. Description for users With inTin you as a user report on your interests on a daily basis. You will receive a login code from the researcher to use the application. The application asks you a number of times a day if you want to fill in what interests you have just been working on or talked about. You will also be asked with whom you share your interests and which media you use. You can also upload audio, photos, and videos to illustrate your interests. You will receive instruction at school on how to use the application.