... Existing studies on mobile apps have deliberated on attitude and purchase intention (Bellman et al., 2011), app adoption (Kim et al., 2013), app usage (Hew et al., 2015;Kim et al., 2014Kim et al., , 2017, factors influencing app installation (Harris et al., 2016) and continuous attachment to apps , frequency of app usage (McLean et al., 2018), consumer engagement (Tarute et al., 2017), stickiness with apps (Furner et al., 2014;Hsu and Lin, 2016;Kim et al., 2016b;Tarute et al., 2017), recommendation to others to use a particular app (Xu et al., 2015;Yan and Chen, 2011), and app adoption according to personality traits (Xu et al., 2016). Studies have also been undertaken on different categories of mobile apps, such as hotel (Fong et al., 2017;Morosan et al., 2016), banking (Alavi and Ahuja, 2016;Mathew et al., 2014), social (Hsiao et al., 2016;Naslund et al., 2016), gaming (Bowman et al., 2015;Christensen and Prax, 2012;Merikivi et al., 2017), and shopping apps (Chen et al., 2018;Dacko, 2016;Kim et al., 2017;Natarajan et al., 2017;Shankar et al., 2016;Wang et al., 2016). ...