Numbeo is the biggest free database of user contributed data about cities and countries worldwide, especially living conditions: cost of living, housing indicators, health care systems, traffic, crime and pollution.
 
Numbeo is a collection of Web pages containing numerical and other itemizable data about cities and countries, designed to enable anyone to contribute or modify content. Numbeo uses wisdom of the crowd to get as reliable data as possible. 

Numbeo

Belgrade

Numbeo startup from Belgrade, Serbia is ranked 551 out of 103920 worldwide and 1 from the 233 startups in Serbia. See more information and additional rankings on the StartupBlink Global Ecosystem Map