Mobilna Granica is a free Android application developed by Izba Celna w Białymstoku that provides travelers with access to real-time information on the situation at Polish border crossings. The app offers data on queue length, average waiting time for customs clearance, waiting time forecasts, and changes in the coming hours. Additionally, the app provides messages related to border crossings, adapted to the user's current GPS position, and access to publicly available images from surveillance cameras.

One of the app's most useful features is that it calculates the individual time left for the user to enter the border crossing area in both directions. The app also allows users to track traffic at border crossings through their smartwatch. Overall, Mobilna Granica is an excellent tool for travelers looking to save time and avoid delays at Polish border crossings.