Recently, with the rapid diffusion of mobile instruments, firms are depending more and more on the
two-way smart phone instead of traditional one-way media like TV, radio, and newspaper. This study
intended to examine how the informativeness of smart phone mobile advertising affects advertising attitude
and purchase intention of the advertised product. Specifically, the differences among the three different ad
types, namely text type and recently growing web and application type ad, were investigated with a
well-known low-priced cosmetic brands. The results from a survey with a sample of 202 smart phone users
showed that the informational value of mobile advertising had a significant effect on advertising attitude and purchase intention. Especially, web and application type ads were found to be more informative. They
were also found to be more effective in inducing positive ad attitude than text-only ads which was widely
used in the early stage. Practical and theoretical implications of these findings were discussed.