  People usually seek out varied information to deal with their health
problems. However, the large volume of information available may present
challenges for the public to distinguish good from suboptimal advice. How to
ensure the right information for the right person at the right time and place
has always been a challenge. For example, smart phone application vendor
markets provide a varied selection of health applications for users. However,
there is a lack of substantive reference information for consumers to base
well-informed decisions about whether or not to adopt the applications they
review and to ascertain the validity of the information provided by these
e-health solutions. Thus, this study aims to review the existing relevant
research about smart phone applications and identify pertinent research
questions in the field of knowledge discovery for health applications that can
be addressed in future research. Therefore, this study can be seen as an
important step for researchers to explore this domain and extend our work for
the well-being of public.
