Mongolia is one of the emerging economy in East Asia. Last 15 years or so, online world has changed enormously. Social media websites and apps continued to grow in popularity and became big part of our lives. Yet Mongolia is poorly developed in terms of statistical research studies, on this field as well. This thesis presented and analyzed current top social media mobile apps and that are high in demand. In order to find out exactly which apps are used the most and offer optimal use for digital marketers to reach their target customers, the present study discusses different categories such as age, location, education as well as human factors and adopts both qualitative and quantitative methodologies.