You struck lucky by writing the right app at the right time

No, that wasn't luck. I saw that apps were making people a lot of money, so I tried making apps of my own. I chose the "right" app because I saw another police scanner app was already successful. So I copied his app idea but made a better app. It wasn't luck. I'm just a better coder and graphics designer and marketer than that other guy was. You see? I chose to do these things. It wasn't luck that I chose to do these things. Unless you're suggesting that people don't have free will and are puppets to some deity called Fate or Destiny or whatever. In that case, you're in the wrong subreddit.

you were also lucky because companies like Apple provided you with a marketplace for your work

And before the iPhone came out, I had a successful online game mod business. What's your point? If Apple didn't exist, I have other ways of making money. It's not like all my income is from apps. I have several income streams, like my YouTube channel that has millions of views per video or my stock investments, or my book sales, or my real estate investments.