Do you have any evidence backing this idea? It is reasonable to believe that the closed platform allowed for the platform to be more trust worthy making it grow faster due to more people seeing it as a platform they can trust. Or maybe an open platform would have led to mass piracy of apps meaning there is less motivation for developers to make apps.

> Do you have any evidence backing this idea?

First search in Google.

https://source.sheridancollege.ca/cgi/viewcontent.cgi?articl...

Also, from my own discussion over the years with different people, security topic popped up only when iOS fans tried to diss Android users.

This paper does not show that being closed was negative to the success of the iphone.

It does mention that "perceived security" was a factor.