The user of the application can purchase an electronic ticket for railways, the ticket can be read electronically by the electronic gates and presented for validation by the controller. To use the application, the user should: Install the application on your mobile device; Perform the necessary actions to register in the application (use of the application by unregistered users is not allowed). Payment for a transport ticket is made using electronic means of payment (payment cards) and other legal methods of online payment. Payment is made in compliance with the requirements of the PCI DSS standard.