People will spend their time on anything they feel useful to them, not the "mobile app".
I think you've been mislead by the current situation where everybody is using apps on their phone. But really, the "mobile app" it's just another thing that is attractive to them.
If you lock somebody in a room with only a TV inside, eventually that person will turn on the TV and start watching, even the TV only plays China Central Television channel one (FYI: It's boring like hell).
It's basically the same effect, the only twist here is that people chose to be addicted to their phones.
I think you've been mislead by the current situation where everybody is using apps on their phone. But really, the "mobile app" it's just another thing that is attractive to them.
If you lock somebody in a room with only a TV inside, eventually that person will turn on the TV and start watching, even the TV only plays China Central Television channel one (FYI: It's boring like hell).
It's basically the same effect, the only twist here is that people chose to be addicted to their phones.
Don't let that effect blind you :)