I think that in next 5 years Web Mobile apps will be more popular than classic Mobile apps we are using today.
That is what happend in case of PCs. 10 years ago we were installing apps instead of just use them in the browser. Now we can edit Word documents, play games and even use IDE in Web Browser. I am not saying that it will be no classic Mobile apps at all, but e.g. apps like Calendar, gmail, Evernote, OneNote or games should be easilly accessible through Mobile Web Browser. The advantage of that would be lack of necessity to install bunch of apps.
This is my prediction. We’ll see what happens after 5 years.