If you're looking to Download Bus+ Placanje on your Chromebook laptop Then read the following guideline.

Applications for paying public transport fares in Belgrade via SMS What should you have done before if you wanted to pay for public transport in Belgrade? You had to find a bus stop with a table of codes, select the fare you need and send an SMS to 9011 with the corresponding code. What now? Just open the application, select the zone you need and the duration of the ticket, and click "send SMS". The app will open chat with 9011 and prefill the necessary code, you need just confirm sending. Zone map and prices will always be on your phone. You will be able to pay the fare while you already on the bus or tram.