캘박Calvak is an Android application designed specifically for college students to manage their schedules efficiently. This free productivity app allows users to track academic schedules, extracurricular activities, and various events like festivals and internships. With integrated scholarship opportunities and monthly prize draws, it enhances student engagement and support. Users can easily add university class schedules and find relevant information quickly through its search feature.

The app offers comprehensive features including calendar management where users can filter and view specific schedules, as well as notifications for important events and deadlines. It provides easy access to brand events and benefits, allowing direct participation through the app. The widget feature enables users to see their schedules from the home screen and lock screen, ensuring they never miss an important date.