I understand that some people like TV/Radio metrics; such as time spent; however web sites/mobile apps are programmable with multiple purposes where each have d

I understand that some people like TV/Radio metrics; such as time spent; however web sites/mobile apps are programmable with multiple purposes where each have diverse usage scenarios than passively watching TV. Comparing Minutes spent on apps or web sites may be a bit misleading; in this case why not put time spend on Office suites or Desktops on PCs too or me watching my Lisp code. Apps such as games, contents, utilities or web front ends have all different meanings to the users and with regard to monetization (ad or not). The same is true for web sites. a. the time I spend with my utility apps are apples and oranges comparison to the time I spend reading HN on my Android. b. Not all 'times spend` are monetizable, or monetizable in the same rate or way; c. Mobile apps are used slower mainly due to small screen size, finger input. d. Games are a peculiar category on their own. Edit: that said; mobile has expanded our connected time to new places/times; toilet, elevator, waiting (queues), couch, TV-ad pauses...