When Blackberry and Nokia were leading things, smartphones were far less popular, and the market for smartphone software far less so. Thus, if you wanted someth

When Blackberry and Nokia were leading things, smartphones were far less popular, and the market for smartphone software far less so. Thus, if you wanted something to run on your smartphone, you paid for it. But nowadays, people aren't willing to pay money for smartphone software. So they have decided to pay in another way.