NLB Pay Serbia is a free Android application that allows users to perform safe and easy contactless payments via mobile phone. It uses digitized payment cards of NLB Komercijalne Banka, a current account with the bank, an active Mastercard or Visa contactless card, and an electronic banking service. To use the application, your phone must support NFC technology and this option must be activated.

For safety reasons, the application only works and payment is only possible with an unlocked phone. It's important to note that the application will not work on mobile phones with an unauthorized modified operating system. Overall, NLB Pay Serbia is a useful application for those who want to make contactless payments with ease and security.