  With the emergence of the Internet of things (IoT), human life is now
progressing towards smartification faster than ever before. Thus, smart cities
become automated in different aspects such as business, education, economy,
medicine, and urban areas. Since smartification requires a variety of dynamic
information in different urban dimensions, mobile crowdsourcing has gained
importance in smart cities. This chapter systematically reviews the related
applications of smart cities that use mobile crowdsourcing for data
acquisition. For this purpose, the applications are classified as
environmental, urban life, and transportation categories and then investigated
in detail. This survey helps in understanding the current situation of smart
cities from the viewpoint of crowdsourcing and discusses the future research
directions in this field.
