This dissertation investigates situations that require the overlay of digital information to the user environment, a condition provided by the use of Augmented Reality (AR) technology. In the research, there are considered applications of the technology that uses the Video See-Through (VST) technique on mobile phones. The dissertation presents different definitions of AR, delimiting tangent concepts such as Virtual Reality and Ubiquitous Computing, to arouse a discussion about the definitions. Then, it presents some of the mobile applications most used in the market, analyzing the impact on using some specific tools in its creation and development process. Considering further social and philosophical aspects inherent to the technology, it seeks to better understand the basic concepts of space, time and reality that the AR uses to operate, in order to support the discussion about the technology and to create the theoretical basis for subsequent analysis.