Technik Informatyk is an app that allows you to effectively study for the exams for the title course. The app is only available for Android and was written in Flutter. It has different learning modes, so the app can adapt to each student's needs. The first version of the app, which received high reviews, was written in a week. After the success of my week-long creation, I decided to completely refactor the app. It now uses a special API where I can add questions and track problems reported by users.