Тройка пополнить карту is a free Android application that allows users to quickly and easily replenish their Troika transport card without any commission fees. With this app, users can use their MasterCard®, Maestro®, or Visa credit card to refill their Troika card anytime and anywhere. The app does not require registration, but registered users can benefit from creating templates for multiple card refills, making the process even faster.

It is important to note that users must activate payment on a yellow information terminal before traveling on the subway. This can be done by pressing the "Remote replenish the electronic purse" button and attaching the Troika card to the terminal. The app uses 3-D Secure technology, which provides a system of one-time passwords to confirm the operation, ensuring the security of the user's information.

Overall, Тройка пополнить карту offers a convenient and commission-free way to refill Troika transport cards, saving users time and hassle.