In the early 90s, you could expect to pay anywhere from $200–1000 for a good C/C++ compiler. Now it’s free. The 30% tax, as many people have already pointed out, is only if you want to sell through the store. Back in the 90s, if you were selling software, downloading off the net wasn’t really a thing yet and you could easily expect to end up giving up 40–60% of the retail sales price and out of what was left you were paying for manufacturing of product so you’d maybe get 20–40% of the retail sales price.
Which leaves the certificate thing and while it’s an annoyance, it’s also nice as a software user to know that a program I’m running is the program it claims to be without much friction on my part, and the cost can’t be that prohibitive since I don’t remember the last time I ended up with an unsigned binary on my Mac, even for free software like TeX and friends or Aquamacs.
> and the cost can’t be that prohibitive since I don’t remember the last time I ended up with an unsigned binary on my Mac, even for free software like TeX and friends or Aquamacs.
Ok, so your app tastes aren't that varied then (or maybe it's the memory), plenty of devs of various little utilities don't bother paying
ICT departments in many large companies often force dev teams to use certain tools, because it's what's on their list of 'approved tools for devs'. Getting new tools on this list is often stonewalled for usually office-politics reasons.
Sometimes devs are locked into the tools they use. This situation is shit, but not uncommon.
That said, I don't know about Mac, but you can build apps using free tools - maybe in not as convenient way, but certainly you can.
I remember, because I was someone who couldn't afford Visual Studio licence and had to make do with GNU tools.
The greed of these companies put me off from developing anything.