The article describes the advantages of mobile applications, which are actual means of providing information. The statistics of common mobile operating systems are given. The developed mobile application "Bayan"is described. The advantages of the developed application for the user are shown.

The article is available the problem of developing an online store. National statistics of the Republic of Kazakhstan for 2018. The advantage of the developed online store "EComKZ" and client-server application "EComQazaqstan". Services from Google companies are described, NoSQL databases are reviewed, and tools for creating an online store are provided.