Globally, those who have traditionally been adversely impacted by the digital divide due to lack of access to computing technologies such as desktop computers, are also the ones who have been shown to have high adoption of mobile devices. If open educational resources (OER) are to have the envisaged wide impact, it is necessary to look at the role mobile applications and mobile app markets play in the OER movement. In this chapter, we link mobile applications and OER and discuss the role mobile app markets play in facilitating open-access learning initiatives. This is done by exploring OER and mobile learning definitions, benefits, and barriers; and comparing and contrasting mobile apps across a set of variables including purpose and resource format.