Content area
Older adults are an important segment in all societies worldwide, and this category of users cannot be ignored, considering technological progress, especially in the proliferation of smartphone applications. The expected growth in this age group in the following years, specifically in some developing countries, will present interaction challenges and opportunities in several areas for both older adult users and smartphone application designers. The main purpose of this review study is to create a better understanding of such a group from different angles and to identify this group of users from the perspective of the Human-Computer Interaction field, as well as explore current and future challenges to build a solid literature review emphasizing findings from HCI and human sciences. This literature review concludes with current and future trends to help address technology designs and older adults’ characteristics and needs.