I only disagree mildly; it's a matter of calling the 'start' of a sigmoid curve.

Already among the earliest apps on the app store, there was evidence of the bad incentives (eg: https://en.wikipedia.org/wiki/I_Am_Rich 2008 or https://ifartmobile.com/ifart-debuts-the-worlds-first-fartin... 2009).

Within a couple years of the App Store I remember all manner of Crazy Frog garbage had flooded tech.