in 2018, iphone users in the us spent 23% more on in-app and app purchases compared to 2017. according to new data from sensor tower, the average amount spent per iphone jumped to $58 in 2017, up 27.26% from 2016.the figures presented by sensor tower do not include purchases made using shopping apps or payments for services such as uber, tinder or netflix.unsurprisingly, the majority of in-app and app revenue still went toward mobile gaming categories on the iphone app store. games contributed roughly $36 of the $58 spent per iphone. that’s 62% of all app revenue being attributed to games.compared to 2016, it represented an increase of 13% for the gaming category in 2017. however, the report also noted that lifestyle apps, though still small compared to games, saw a significant jump of 110% more revenue in 2017. entertainment apps have also managed to attract an increase in revenues at +57% in 2017 over 2016.meanwhile, music apps saw the smallest increase among the top five categories at 8%.app installs on iphone devices increasegood news for app developers as sensor tower found that overall app installs among us iphones increased by almost 10% to 45 downloaded apps per iphone in 2017.this roughly translates to an average 4 more apps being installed in 2017 over 2016.games ranked the highest with an average 13 installed per device, representing a 7% increase over 2016. entertainment apps grew 7% whilst utilities jumped 4%. meanwhile, photo and video apps saw the largest dro...