Můj vlak is a free mobile application for Android that serves as a comprehensive travel companion for train travellers in the Czech Republic. Developed by České dráhy a.s., this app offers a range of features that make travelling on ČD trains easier and more convenient.

With Můj vlak, users can search for train connections, purchase inland tickets, reservations, and additional ČD services. The app also provides an on-board portal that gives users information about their journey, current position, and train delay. In addition, the app offers an overview of closures, extraordinary events, and changes on the train's route.

Můj vlak also provides information on services on the train, such as train composition and accessibility, and services at the station, including train departures, opening hours, station location, and accessibility. The electronic ticket manager feature allows users to manage their tickets easily.