Oh darnit, I just wrote a whole lot about my experiences of Apple (admitedly not much, recently), Android, other things from BeOS (referenced in a link to In The Beginning There Was The Command Line, written in 1999) through Blackberry, Palm and Raspberry and peppered with interesting linkable sources when, on returning to this tab from having picked up the URL of
https://xkcd.com/1889/ (the sixth of eight such planned insertions) the browser obviously decided that I was rambling too much (I'm not sure I disagree!) and sent me back to the 'fresh and blank edit-new-post' page, not even able to go forward in history to the (several) post-Previews I made along the way.
You therefore escaped the fate of having to read it. (But, really, this is among the many flaws of a mobile browser, though Firefox is
usually better than Chrome in this regard.)
As consolation prize, I shall just pass on from short-term memory that (according to the brief research I did during that aborted edit, though I took only the first few consistent figures I saw without further advanced checking) there are just under two
million Apple Store apps (may not all be available to all extant versions of iOS) compared to just under
three million on Google Play (ditto for Android versions). Which are interestingly large (and close!) figures. But given the potential lucrative nature (despite the hoops that both gatekeepers force devs to go through, for reasons both logical and arguable) and the huge numbers of people willing to at least try to be even small fish in a huge pond of many other far bigger fish, the ecosystem does therefore exist for them.
But billions of people are never going to have the 'app'titude or ability to successfully jump through those hoops (wait, that's not fish, that's dolphins... but I thought that in this edit I was going to avoid such runaway analogies!) and that suits the people behind the various Stores just fine because they're already raking it in quite nicely, I suppose, sat where they are as vendor and intermediary between the producing community and the consuming one.
(i.e., there's no real incentive to make things easier, and various (good?) reasons to keep things harder. Not in that vicinity of the development phase-space, anyway.)