Facebook predates iPhones by 3 years.

jen20 · 2025-04-28T09:43:09 1745833389

NSNotificationCenter predates the iPhone by 13 years, though…

tgv · 2025-04-28T20:16:32 1745871392

According to the docs, NSNotificationCenter already was present in Mac OS X 10.0. It seems to be present in NextSTEP 3.3, which was released in 1995 (http://www.cilinder.be/docs/next/NeXTStep/3.3/nd/Foundation/...).

varenc · 2025-04-28T17:45:45 1745862345

I was interning at Facebook in '07 when the first iPhone was released. Can confirm! Someone was 3rd in line at the Palo Alto Apple store and brought it over to the office.

Though iOS definitely predates 3rd party apps and the ad based economy. Which is a bit of a tautology.