Post of Serbia’s Mobile Application contains the following options: - SEND A POSTEXPRESS: select the service and schedule the collection of your postal item. - PRICE CALCULATOR: calculate the price of the service for domestic and international traffic. - ITEM TRACKING: track the status of your postal item using its number. - FIND POST OFFICE: find post offices near your current location. - ABOUT US: general information about the Post of Serbia. - CONTACT: send questions, suggestions or comments