AR Phone, MobiAR and GeoBoids are examples of mobile
AR that are based on handheld devices instead of wearable
computers and HMDs. As a consequence, the user does not
have to carry special hardware which improves mobility. AR
Phone[15] is study where a mobile phone with limited
processing capabilities is used to provide an augmented reality
interface in smart environments. In the AR Phone system highprocessing
tasks such as image processing are performed on
the AR server and the phone merely performs the role of
viewer. MobiAR[16] is Android application that provides
tourist information with augmented reality. When users
observe the real world through the MobiAR, the view is
augmented with information of their location. With multimedia
content, users can access useful information to plan their routes
in the city. GeoBoids[9] is an exergame that uses AR on
smartphones. The game provides Field and Arcade modes
where the player has to search and capture virtual GeoBoids
creatures in an outdoor real world environment. Interaction
between the player and augmented reality objects is simple
which is just touch or swipe on the smartphone screen. To our
knowledge GeoBoids and Calory Battle AR are the only
research outcomes of exergames utilizing mobile AR