Belgrade Nikola Tesla Airport has published official application for all mobile platforms.
Application contains information on real-time timetable, along with all information for travel including transport, parking, online check-in, content and services, airline contacts and airport map. Mobile application is awailable in both Serbian and English language.
Application can be downloaded at Play Store for Android mobile platform and at the App Store for IOS mobile platform.
Additional information about the options can be obtained in this document.